The critical values are χ2l=8.230 and χ2r=27.587.
To find the critical values χ2l and χ2r that correspond to a 90 degree of confidence and a sample size of n=19, we need to use a chi-squared distribution table. First, we need to find the degrees of freedom (df) which is equal to n-1, or 19-1=18.
Next, we need to find the area under the curve to the right of χ2α/2 and the left of χ21-α/2. Since our confidence level is 90%, we have α=0.10 and α/2=0.05.
Using the chi-squared distribution table with df=18, we can find that the area to the right of χ2α/2=27.587 is 0.05. Similarly, the area to the left of χ21-α/2=8.230 is also 0.05.
Therefore, our critical values are χ2l=8.230 and χ2r=27.587. This means that if our calculated chi-squared value falls outside of this range, we can reject the null hypothesis with 90% confidence.
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help will give brainiest
A recursive arithmetic sequence a₁ = -4 and aₙ = aₙ₋₁ + 11,
a) the value of a₁ = -4
b) The value of d = 11
c) The iterative sequence of the arithmetic sequence is -4, 7, 18, 29, 40, 51, 62, 73, 84, 95...….
d) The value of a₁₀ is 95.
Arithmetic Sequence:
Arithmetic sequence terms refer the difference between consecutive terms is always the same.
Given,
Here we have the recursive arithmetic sequence a₁ = -4 and aₙ = aₙ₋₁ + 11.
And we need to find the following:
a) a₁
b) d
c) iterative sequence rule
d) a₁₀
While we looking into the given expression we have easily identified the value f a₁ is -4 and the value of common difference d is 11.
Now we have to find the iterative sequence, that is non other than the consecutive values of the arithmetic sequence,
it can be calculated as follows:
a₂ = a₂₋₁ + 11 = a₁ + 11 = -4 + 11 = 7
Similarly, the next value is calculated by adding 11 to its previous values,
So, the value of
a₃ = 7 + 11 = 18
a₄ = 18 + 11 = 29
a₅ = 29 + 11 = 40
a₆ = 40 + 11 = 51
a₇ = 51 + 11 = 62
a₈ = 62 + 11 = 73
a₉ = 73 + 11 = 84
a₁₀ = 84 + 11 = 95
Therefore, the iterative sequence is calculated by adding 11 to it and the sequence is -4, 7, 18, 29, 40, 51, 62, 73, 84, 95...…..
And the value of a₁₀ is 95.
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write the miles version of 80km
Answer:
49.7 mph
Step-by-step explanation:
divide the length value by 1.609
If 3a = 4b = 5c then what is the ratio A:B:C?
Answer: 20:15:12
Step-by-step explanation:
First, find the LCM of the numbers 3 4 5 which is 60
Then divide 60 by 3 4 and 5
We get 20 15 and 12 in order so that's the ratio
20:15:12
based off of this information, what conclusions can be made about the mean value theorem? this contradicts the mean value theorem since f satisfies the hypotheses on the given interval but there does not exist any c on (1, 4) such that f '(c)
The correct option is; 4: this contradicts the Mean Value Theorem since there exists a c on (1, 7) such that f '(c) = f(7) − f(1) (7 − 1) , but f is not continuous at x = 3.
Explain the term Mean Value Theorem?The Mean Value Theorem says that there occurs a point c in the interval (a,b) so that f'(c) equals the function's average rate of change throughout [a,b] if a function f is continuous just on closed interval [a,b] as well as differentiable just on open interval (a,b).The function being used is;
f(x) = (x - 3)⁻²
If we separate this function according to x, we obtain;
f'(x) = -2/(x - 3)³
Finding all c values f(7) − f(1) = f '(c)(7 − 1).is our goal.
This suggests that;
0.06 - 0.25 = -2/(c - 3)³ x 6
-0.19 = -12/(c - 3)³
(c - 3)³ = 63.157
c = 6.98
If the Mean Value Theorem holds for this function, then f must be continuous on [1,7] and differentiable on (1,7).
But when x = 3, f is not continuous, hence the Mean Value Theorem's prediction is false.
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The complete question is-
Let f(x) = (x − 3)−2. Find all values of c in (1, 7) such that f(7) − f(1) = f '(c)(7 − 1). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) c = Based off of this information, what conclusions can be made about the Mean Value Theorem?
This contradicts the Mean Value Theorem since f satisfies the hypotheses on the given interval but there does not exist any c on (1, 7) such that f '(c) = f(7) − f(1) 7 − 1 . This does not contradict the Mean Value Theorem since f is not continuous at x = 3. This does not contradict the Mean Value Theorem since f is continuous on (1, 7), and there exists a c on (1, 7) such that f '(c) = f(7) − f(1) 7 − 1 . This contradicts the Mean Value Theorem since there exists a c on (1, 7) such that f '(c) = f(7) − f(1) 7 − 1 , but f is not continuous at x = 3. Nothing can be concluded.If y=-1/3x-7, then find the output if the input is 12.
Answer:
-11
Step-by-step explanation:
input=x
output=y
Replace x with 12.
\(y=-\frac{1}{3}(12) -7\)
Solve.
Answer:
Step-by-step explanation:
Graph the line that represents this equation:y=-2/3x +1
Answer:
(attached below)
Step-by-step explanation:
I have attached what your graph should look like with 1 being the y intercept and -2/3 being your slope
Answer:
here it is
Step-by-step explanation:
Find the value of X.
Answer:
151°
Step-by-step explanation:
The above shape is a quadrilateral.
sum of exterior angle of a quadrilateral is 360°.The exterior angles are :
82°, 70°, 62°, and (x -5)°
Therefore,
82 + 70 + 62 + x - 5 = 360
214 -5 + x = 360
209 + x = 360
x = 360 - 209
x = 151°
for which part of the engineering process would the use of statistics to analyze data about drug tests
The application of statistics in drug testing involves various techniques such as hypothesis testing, confidence intervals, regression analysis, analysis of variance (ANOVA), and other statistical models.
In use of statistics in analyzing data about drug tests is an integral part of the engineering process, particularly in pharmaceutical engineering, enabling evidence-based decision-making and enhancing the quality
The use of statistics to analyze data about drug tests falls within the realm of data analysis and interpretation, which is an important part of the engineering process. More specifically, it is commonly associated with the field of pharmaceutical engineering or pharmaceutical development.
These methods help to assess the significance of the observed data, identify patterns, evaluate the impact of variables, and draw conclusions from the experimental results.
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problem 4.3.4 for a constant parameter a > 0, a rayleigh random variable x has pdf fx (x) = { a2xe−a2x2/2x > 0, 0 otherwise. What is the CDF of X?
The CDF of X for a constant parameter a > 0, a rayleigh random variable x is \(F_{X}(x) = 1 - e^{(-a^2x^2/2)\) for x > 0, and 0 otherwise.
To find the CDF (Cumulative Distribution Function) of a Rayleigh random variable X with the given \(PDF f_X(x) = {a^2xe^{(-a^2x^2/2)\) for x > 0, 0 otherwise}, we need to integrate the PDF from 0 to x. Here's the solution:
\(CDF F_X(x)\) = ∫\([a^2xe^{(-a^2x^2/2)]}dx\) from 0 to x
Let's denote u = \(a^2x^2/2\). Then, du = \(a^2xdx\). So the integral becomes:
\(F_X(x)\) = ∫\([e^{(-u)}du]\) from 0 to \(a^2x^2/2\)
Now, integrate \(e^{(-u)}\) with respect to u:
\(F_X(x)\) = \(-e^{(-u)\) | from 0 to \(a^2x^2/2\)
Evaluate the definite integral:
\(F_X(x)\) = \(-e^{(-a^2x^2/2)} + e^{(0)} = 1 - e^{(-a^2x^2/2)\)
Thus, the CDF of X is \(F_X(x)\) = \(1 - e^{(-a^2x^2/2)\) for x > 0, and 0 otherwise.
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Select the correct answer.
What is the value of this expression when x=-6 and y=-2?
4(x + 3) - 2y
Answer:
-8
Step-by-step explanation:
Plug in the values of each variable:
4(-6 + 3) - 2(-2)
Use PEMDAS:
4(-3) - 2(-2)
-12 + 4
-8
Answer:
-8
Step-by-step explanation:
* means multiply
just plug in the values
4 ( -6 + 3 ) - (2 * -2)
use pemdas
so parenthesis first
4 * -3 - (-4)
then multiply
-12 - (-4)
-12 + 4
-8
Which of the following principles does NOT reflect the RTI model for math?
a. regularly monitoring students' progress
b. screening all students for math ability
c. providing evidence-based math instruction
d. providing intervention for all students, whether they need it or not
The principle that does NOT reflect the RTI (Response to Intervention) model for math is.
d. providing intervention for all students, whether they need it or not.
The RTI model for math is designed to support students' learning by providing targeted interventions based on their specific needs.
The model emphasizes regularly monitoring students' progress to identify those who may require additional support. It also promotes screening all students for math ability to ensure early identification of struggling learners.
Additionally, evidence-based math instruction is a key principle of the RTI model, meaning that instructional strategies are based on research and proven to be effective. However, the principle that does not align with the RTI model is providing intervention for all students, whether they need it or not.
RTI focuses on providing interventions to students who demonstrate a need for additional support based on data and assessments, rather than providing intervention universally without regard to individual student needs.
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10. Let g(x) be a differentiable function for which g'(x) > 0 and g"(x) < 0 for all values of x. It is known that
g(3) = 2 and g(4) = 7. Which of the following is a possible value for g(5)? (A) 10 (B) 12 (C) 14 (D) 16
The only answer choice that is greater than 7 is (D) 16. Therefore, g(5) could be 16.
Since g'(x) > 0 for all x, g(x) is an increasing function. Also, since g"(x) < 0 for all x, g(x) is a concave down function.
Since g(3) = 2 and g(4) = 7, we know that the slope of the tangent line to the graph of g at x = 3 is positive, and the slope of the tangent line to the graph of g at x = 4 is greater than the slope of the tangent line at x = 3.
Therefore, we can conclude that g(5) > g(4) + (5-4)g'(4) = 7 + g'(4)
Since g'(x) > 0 for all x, we know that g'(4) > 0. Therefore, we can conclude that g(5) > 7.
The only answer choice that is greater than 7 is (D) 16. Therefore, g(5) could be 16.
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Complete the folllowing two column proof
The two column proof is written as follows
Statement Reason
line LQ || Line NP given
< Q is congruent to < N Alternate interior angles
< L is congruent to < P Alternate interior angles
< LMQ is congruent to < PMN Vertical angle theorem
Δ LMQ similar Δ PMN Definition of similar triangles
What is similar triangles?Similar triangles are triangles that have the same shape but may differ in size. In other words, they have the same angles but their sides may be of different lengths.
If two triangles are similar, it means that their corresponding angles are equal, and their corresponding sides are in proportion to each other.
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Determine which of the following subsets of P^4 are subspaces of P^4?
a. S is the subset consisting of those polynomials satisfying p(5) > 0 b. S is the subset consisting of those polynomials of degree three c. S is the subset consisting of those polynomials of the form p(x) = ax^3 + bx. d. S is the subset consisting of those polynomials satisfying p(5) = 0. e. S is the subset consisting of those polynomials of the form p(x) = x^3 + c.
The subsets d and e (Satisfying p(5) = 0 and those of the form p(x) = x^3 + c, respectively) are subspaces of P^4.
To determine which of the given subsets of P^4 (the vector space of polynomials of degree at most 4) are subspaces, we need to check if they satisfy the three properties of a subspace: closure under addition, closure under scalar multiplication, and containing the zero vector.
a. S is the subset consisting of those polynomials satisfying p(5) > 0:
This subset is not a subspace because it does not satisfy closure under scalar multiplication. If we multiply a polynomial in S by a negative scalar, the resulting polynomial will not satisfy p(5) > 0.
b. S is the subset consisting of those polynomials of degree three:
This subset is not a subspace because it does not contain the zero vector, which is the polynomial of degree zero.
c. S is the subset consisting of those polynomials of the form p(x) = ax^3 + bx:
This subset is not a subspace because it does not satisfy closure under addition. If we take two polynomials of this form and add them, the resulting polynomial will have an x^2 term, which is not in the given form.
d. S is the subset consisting of those polynomials satisfying p(5) = 0:
This subset is a subspace. It contains the zero vector, as the zero polynomial satisfies p(5) = 0. It also satisfies closure under addition and scalar multiplication, as the sum or scalar multiple of polynomials that satisfy p(5) = 0 will still satisfy p(5) = 0.
e. S is the subset consisting of those polynomials of the form p(x) = x^3 + c:
This subset is a subspace. It contains the zero vector (when c = 0), and it satisfies closure under addition and scalar multiplication. Adding or multiplying polynomials of this form will still result in a polynomial of the same form.
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how much paper is used in the label for the can of cat food? Round your answer to the nearest whole number
A statistically significant F test means that at least one variable in the model is statistically significant, but that does not mean that all of the variables in the model are statistically significant.
Select one: True False
A high p value (greater than alpha) indicates a significant predictor in the regression.
Select one:True False
1) A statistically significant F test means that at least one variable in the model is statistically significant, but that does not mean that all of the variables in the model are statistically significant.
Select one: True
2) A high p-value (greater than alpha) indicates a significant predictor in the regression.
Select one: False
In statistics, a process known as test static is used to determine the significance of the observed result. A hypothesis test is also used for this test. Everywhere in statistical analysis, the P-value or probability value notion is applied. It establishes the statistical significance and significance testing measure. Let's go into detail about the P-value's definition, calculation, table, interpretation, and how to utilise it to determine the significance level, among other things, in this post.
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what is 4000 times 8 divded 7 plus -4 minus 6
Answer:
4561.42
Step-by-step explanation:
Answer:
4561.42857
Step-by-step explanation:
32000/7=4571.42857-4=4567.42857+6=4561.42857
Acellus
Complete the data table for the function
f(x) = (x + 2 - 6.
X
-2
-1
2
Y
[?]
Enter
\(\\ \sf\Rrightarrow f(x)=\sqrt{x+2}-6\)
\(\\ \sf\Rrightarrow f(-2)\)
\(\\ \sf\Rrightarrow \sqrt{-2+2}-6\)
\(\\ \sf\Rrightarrow 0-6\)
\(\\ \sf\Rrightarrow -6\)
And
\(\\ \sf\Rrightarrow f(-1)\)
\(\\ \sf\Rrightarrow \sqrt{-1+2}-6\)
\(\\ \sf\Rrightarrow \sqrt{1}-6\)
\(\\ \sf\Rrightarrow 1-6\)
\(\\ \sf\Rrightarrow -5\)
And
\(\\ \sf\Rrightarrow f(2)\)
\(\\ \sf\Rrightarrow \sqrt{2+2}-6\)
\(\\ \sf\Rrightarrow \sqrt{4}-6\)
\(\\ \sf\Rrightarrow 2-6\)
\(\\ \sf\Rrightarrow -4\)
And
\(\\ \sf\Rrightarrow f(7)\)
\(\\ \sf\Rrightarrow \sqrt{7+2}-6\)
\(\\ \sf\Rrightarrow \sqrt{9}-6\)
\(\\ \sf\Rrightarrow 3-6\)
\(\\ \sf\Rrightarrow -3\)
calculate the length of a rectangle with:
area 35cm² and breadth 50mm
Answer:
7mm
Step-by-step explanation:
Area=l*b
35cm²=l*50mm
350mm²/50mm=l
7mm=l
Zayed is helping his classmates get ready for their math test by making them identical packages of pencils and calculators.
He has 727272 pencils and 242424 calculators and he must use all of the pencils and calculators.
If Zayed creates the greatest number of identical packages possible, how many pencils will be in each package?
Answer:
3 pencils will be in each packageStep-by-step explanation:
72 Pencils
24 calculators
72/24 = 3/1
for Every one calculator 3 Pencils need to be used
Greatest number of Package = 24 as 24 Calculators are there
number of pencils in each package = 3 ( 72/24 = 3)
Answer:
3 pencils will be in each package
Step-by-step explanation:
You divide 727272 by 242424 to get 3
Solve for y.
2- -3 = y
y =
Answer:
y=5
Step-by-step explanation:
the way you do this is by adding 2 and 3 because two negatives make a positive.
Reduce each of the following fractions to its simplest form. a. 12⁄18 b. 48⁄54 c. 27⁄90 d. 63⁄77 e. 24⁄32 f. 73⁄365
Answer: A. 2/3 B. 8/9 C. 3/10 D. 9/11 E. 3/4 F. 1/5
Step-by-step explanation:
Solve 2x + 2 > 10.
O A. x>4
O B. X>6
O c. x< 6
O D. x<4
Answer:
x >4
Step-by-step explanation:
2x + 2 > 10
Subtract 2
2x+2-2> 10-2
2x > 8
Divide by 2
2x/2 > 8/2
x >4
Answer:
A, x>4
Step-by-step explanation:
Solve this like any other two step equations
2x + 2 > 10
Subtract 2 on each side
Now it becomes 2x > 8
Then divide 2'on each side
8/2=4
Therefore your answer is x>4
Which is answer A
Hope this helps!
Seattle, Washington is known for being very rainy. One day last month, 8 inches of rain fell in 1 1/2 hours. What is the rate of rainfall expressed in feet per hour?
Answer:
0.44ft/hr
Step-by-step explanation:
Given parameters:
Quantity of rainfall = 8inches
1ft = 12inches
so;
\(\frac{8}{12}\) = 0.67ft
Time = \(\frac{3}{2}\)hr
Unknown:
Rate of rainfall expressed in ft/hr = ?
Solution:
The rate of the rainfall is given as;
Rate = \(\frac{Quantity}{time}\)
Rate = \(\frac{0.67ft}{\frac{3}{2} }\) = 0.44ft/hr
Nicolas drinks ⅔ liter of water in the morning and ½ liter of water at lunch. During basketball practice, he drinks another ⅔ liter of water. What is the total amount of water, in liters, that Nicolas drinks?
Based on the amount of water that Nicolas drank in the morning, at lunch, and at basketball practice, the total amount of water that Nicolas drank was 1 ⁵ / 6 liters
How to find the amount of water?To find the amount of water that Nicolas has drank in total, you should add up all the liters of water that he has been drinking.
Seeing as these fractions have different denominators, you should find the lowest common multiple of 3 and 2 as this would be the common denominator. The common denominator would therefore be 6.
Convert the fractions to have a decimal of 6 by dividing 6 by the denominator of the fraction and then multiplying the result by the numerator.
This converts the fractions of water Nicolas drank in the morning, at lunch, and at basketball practice to:
= 4 / 6 + 3 / 6 + 4 / 6
= 11 / 6
= 1 remainder 5
In mixed fractions this is:
= 1 ⁵ / 6 liters
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Help ASAP giving brainliest
Step-by-step explanation:
Mean= 13.4
Median= 13
Range= 11
for the following exercises, use a computer algebraic system and the diveregence theorem to evaluate surface integral for the given choice of f and the boundary surface s. for each closed surface, assume n is the ouward unit normal vector. 376. (t) F(x,y,z)=xi+yj+zk; s is the surface of cube
The given vector field is: F(x, y, z) = xi + yj + zk, the answer is 3.
The surface of the cube can be represented as: S = {x, y, z | x ∈ [0, 1], y ∈ [0, 1], z ∈ [0, 1]}
According to the Divergence theorem, we can write: ∫∫S F. n dS = ∫∫∫V (div F) dV
Now, we need to evaluate the divergence of the given vector field, F(x, y, z).
Let's evaluate the divergence of F: div F = (∂Fₓ/∂x) + (∂Fᵧ/∂y) + (∂Fₓ/∂z) = 1 + 1 + 1 = 3
Now, we have: ∫∫S F. n dS = ∫∫∫V (div F) dV= ∫∫∫V 3 dV= 3V
Where, V is the volume of the cube.
So, V = (1 - 0)(1 - 0)(1 - 0) = 1∴ ∫∫S F. n dS = 3V = 3 x 1 = 3
So the answer is: 3
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What is the common ratio in this sequence? 2, 10, 50, 250, 1250, ...
Answer: The common ratio is 5 because each time, you multiply the previous number by 5 to get the next number.
Step-by-step explanation:
1. On a standardized test, Cathy had a score of 74, which was exactly 1 standard deviation
below the mean. If the standard deviation for the test is 6, what is the mean score for
the test?
The mean score for the test is 80.
We have,
To find the mean score for the test, we can use the relationship between the mean, the standard deviation, and the z-score.
The formula for the z-score is:
z = (x - μ) / σ
Where:
z is the z-score,
x is the given score,
μ is the mean, and
σ is the standard deviation.
In this case, we know that Cathy's score (x) is 74 and it is 1 standard deviation below the mean (z = -1).
The standard deviation (σ) is given as 6.
Plugging these values into the z-score formula, we can solve for the mean (μ):
-1 = (74 - μ) / 6
Multiplying both sides by 6:
-6 = 74 - μ
Rearranging the equation:
μ = 74 + 6
μ = 80
Thus,
The mean score for the test is 80.
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Convert 0.0045 to a percent.
Select one:
0.045%
0.45%
4.5%
45%
Answer: 0.045%
Step-by-step explanation: