In a two-tailed hypothesis test, the null hypothesis should be rejected if the p-value is less than or equal to the significance level (alpha).
The p-value is a measure of the strength of evidence against the null hypothesis. It represents the probability of observing the data or more extreme results, assuming that the null hypothesis is true. In a two-tailed test, we are interested in deviations from the null hypothesis in both directions.
Therefore, if the p-value is smaller than the predetermined significance level (usually 0.05), we have sufficient evidence to reject the null hypothesis and conclude that there is a statistically significant difference. Conversely, if the p-value is greater than the significance level, we fail to reject the null hypothesis and do not have enough evidence to conclude a significant difference. It is important to note that the p-value itself does not provide information about the magnitude or practical significance of the observed effect.
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Attends takes t seconds to mow a square meter of lawn and Ciara takes c seconds to mow a square meter of lawn. Attends mows 700 square meters of lawn per week and Ciara mows 750 square meters of lawn per week. Which expressions can we use to describe how many seconds Tatenda spends than Ciara spends mowing lawns during 4 weeks?
The expression to describe how many seconds Tatenda spends more than Ciara during 4 weeks is 2800t - 3000c.
Let's start by calculating how many seconds it takes Attends and Ciara to mow one square meter of lawn
Attends takes t seconds per square meter
Ciara takes c seconds per square meter
To calculate how many seconds Tatenda spends more than Ciara during 4 weeks, we need to first calculate how many seconds each of them spends mowing lawns in 4 weeks.
Attends mows 700 square meters of lawn per week, so in 4 weeks, he will mow 700 x 4 = 2800 square meters of lawn.
Similarly, Ciara mows 750 square meters of lawn per week, so in 4 weeks, she will mow 750 x 4 = 3000 square meters of lawn.
Now, let's calculate how many seconds it takes each of them to mow their respective lawns:
Attends takes t seconds to mow one square meter of lawn, so to mow 2800 square meters of lawn, he will take 2800 x t seconds.
Ciara takes c seconds to mow one square meter of lawn, so to mow 3000 square meters of lawn, she will take 3000 x c seconds.
Finally, to calculate how many seconds Tatenda spends more than Ciara, we can subtract the time it takes Ciara from the time it takes Attends
= 2800t - 3000c
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. What's the Error? Colin was given the inequality x - 4.2 > 5.5 to solve. He said the solution set was x> 1.3. Describe Colin's error and give the correct solution set in your explanation.
Answer:
hkjhkhkjhuhkjkjhuuu
Step-by-step explanation:
The day after the school election it was reported that Danny won the election for class president. For every three votes his opponent received, Danny received 5 votes. Every student voted exactly once. If the students voted only for either Danny or his opponent and Danny's opponent received 312 votes, how many students voted in the election?
Answer:
I think the answer is 832 but I'm not sure as I'm not the best at math.
Hope this helps anyhow! <33
In 60 seconds, a car in a parade travels 0.2 mile. The car traveled the last 0.05 mile in 12 seconds. How long did it take for the car to travel 0.1 mile?
Answer:
First 0.1 miles: 32 seconds
Last 0.1 miles: 28 seconds
Step-by-step explanation:
The car traveled 0.2 mile in 60 seconds.
The last 0.05 miles were done in 12 seconds.
Then the first 0.2 - 0.05 = 0.15 miles were done in 60 - 12 = 48 seconds. The speed of the car was: 0.15/48 = 0.003125 mi/s
At this speed it takes 0.1/0.003125 = 32 s to travel the first 0.1 mile.
In the second 0.1 mile, 0.05 miles are done at the same speed than before. It takes 0.05/0.003125 = 16 s, the next 0.05 miles were traveled in 12 seconds, making a total of 16+12 = 28 seconds
6,000mL=............L
Step-by-step explanation:
1L=1000mLso 6000mL÷1000mL*1L=6LI hope it helps have a great weekend!!HURRY UP (100) POINTS PLS HURRY (10 MINS LEFT)
Translate the following equation into words: 5c - 4 = 11 Five, times a number minus four, is eleven. A number, times five minus four, is eleven. Five times a number, subtracted from four, is eleven. Four less than the product of five and a number, is eleven.
Answer:
Four less than the product of five and a number, is eleven.
Step-by-step explanation:
"The product of five and a number": 5c
"Four less than": - 4
"is eleven": = 11
"Four less than the product of five and a number is eleven":
5c - 4 = 11
Four less than the product of five and a number is eleven
No is cProduct of 5 and c is 5c
4 less than it means 5c-4
The result is 11
So expression is 5c-4=11it costs $5820 to get new windows for
Answer:
idek
Step-by-step explanation:
a unit of measurement equal to one thousand meters is_____
A unit of measurement which is equal to one thousands meters is known as one kilometers.
Different units of measurements are meters , kilometers, centimeters, millimeters and so on.Measuring small length basically we use centimeters and very small length in millimeters.Measuring medium length we use unit known as meters.When we have measure long distance unit which is used is known as kilometers.Relation between different units of length are:1centimeters is equal to 10 millimeters1 meter is equal to 100 centimeters1 kilometers is equal to 1000 metersTherefore, the given units of measurement equal to one thousand meters is called one - kilometers.
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HELP PLEASE!) Given the circle below, find the measure of angle CDE.
Answer: 33 degrees
Step-by-step explanation:
Angles inscribed in the same arc are congruent, so
\(13+4x=-7+8x\\\\20+4x=8x\\\\20=4x\\\\x=5\\\\\implies m\angle CDE=-7+5(8)=33^{\circ}\)
I NEED HELP WITH NUMBER 1 PLEASE
Solve for x in this problem √x-2 +4=x
The Radical Form (√x) ,the solutions to the equation √x - 2 + 4 = x are x = 1 and x = 4.
The equation √x - 2 + 4 = x for x, we can follow these steps:
1. Begin by isolating the radical term (√x) on one side of the equation. Move the constant term (-2) and the linear term (+4) to the other side of the equation:
√x = x - 4 + 2
2. Simplify the expression on the right side of the equation:
√x = x - 2
3. Square both sides of the equation to eliminate the square root:
(√x)^2 = (x - 2)^2
4. Simplify the equation further:
x = (x - 2)^2
5. Expand the right side of the equation using the square of a binomial:
x = (x - 2)(x - 2)
x = x^2 - 2x - 2x + 4
x = x^2 - 4x + 4
6. Move all terms to one side of the equation to set it equal to zero:
x^2 - 4x + 4 - x = 0
x^2 - 5x + 4 = 0
7. Factor the quadratic equation:
(x - 1)(x - 4) = 0
8. Apply the zero product property and set each factor equal to zero:
x - 1 = 0 or x - 4 = 0
9. Solve for x in each equation:
x = 1 or x = 4
Therefore, the solutions to the equation √x - 2 + 4 = x are x = 1 and x = 4.
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The population for a clinical study has 500 Asian, 1000 Hispanic and 500 Native American people. What is good way of sampling this population to ensure that the distribution of various sub-populations is maintained if only 200 samples have to be chosen? Give the distribution of the various sub-populations in the final sample.
A good way to sample this population while maintaining the distribution of various sub-populations is by using stratified sampling. In stratified sampling, the population is divided into homogeneous subgroups or strata based on certain characteristics, and then a random sample is selected from each stratum.
To ensure that the distribution of various sub-populations is maintained, the sample should include a proportional representation of individuals from each subgroup. In this case, the subgroups are Asian, Hispanic, and Native American.
Here's how the distribution of the various sub-populations can be maintained in the final sample:
1. Determine the proportion of each subgroup in the population:
- Asian: 500 / 2000 = 0.25 (25%)
- Hispanic: 1000 / 2000 = 0.5 (50%)
- Native American: 500 / 2000 = 0.25 (25%)
2. Calculate the number of samples to be chosen from each subgroup:
- Asian: 0.25 * 200 = 50 samples
- Hispanic: 0.5 * 200 = 100 samples
- Native American: 0.25 * 200 = 50 samples
3. Randomly select the specified number of samples from each subgroup.
By using stratified sampling with the specified proportions, the final sample of 200 individuals will have a distribution that reflects the proportions of Asian, Hispanic, and Native American subpopulations in the overall population.
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Could I get some help, please?
Answer: 110 degrees
Step-by-step explanation:
Find the percent increase in price per cheese stick.
Answer:
The answer is 80%
Step-by-step explanation:
BRAINLIEST PLEASEEEE
how many collections of six positive, odd integers have a sum of 18 ? note that 1 1 1 3 3 9 and 9 1 3 1 3 1 are considered to be the same collection.
We used the concept of generating functions and the binomial theorem, there are 33,649 collections of six positive, odd integers that have a sum of 18.
To find the number of collections, we used the concept of generating functions and the binomial theorem. We represented the possible values for each integer as terms in a generating function and found the coefficient of the desired term. However, since we were only interested in the number of collections and not the specific values, we simplified the calculation using the stars and bars method. By arranging stars and bars to represent the sum of 18 divided into six parts, we calculated the number of ways to arrange the dividers among the spaces. This resulted in a total of 33,649 collections of six positive, odd integers with a sum of 18.
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Worth 60 points for a rapid reply- find the area of each regular polygon. Answers are rounded to the nearest whole number.
The area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.
How to calculate for the area of the polygonArea of regular polygon = 1/2 × apothem × perimeter
perimeter = (s)side length of octagon × (n)number of side.
apothem = s/[2tan(180/n)].
11 = s/[2tan(180/12)]
s = 11 × 2tan15
s = 5.8949
perimeter = 5.8949 × 12 = 70.7388
Area of dodecagon = 1/2 × 11 × 70.7388
Area of dodecagon = 389.0634 in²
Area of pentagon = 1/2 × 5.23 × 7.6
Area of pentagon = 19.874 in²
Therefore, the area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.
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Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. What was the total cost before sales tax? Round your answer to the nearest cen
The total cost before the sales tax was 19.828 pounds.
For a party, Jordan purchased 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad.
We have to determine the total cost before sales tax.
As per the question, we have prices as:
cost of turkey = 3.95 per pound
cost of egg cheese = 1.3 per pound
cost of egg salad = 0.89 per pound
The total cost of turkey = 3.8 × 3.95 = 15.01 pounds
The total cost of cheese = 2.2 × 1.3 = 2.86 pounds
The total cost of egg salad = 2.2 × 0.89 = 1.958 pounds
The total cost before sales tax = 15.01 + 1.958 +2.86
Apply the addition operation, and we get
The total cost before sales tax = 19.828 pounds
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The question seems to be incomplete the correct question would be:
Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. If prices are 3.95 per pound turkey, 1.3 per pound cheese and 0.89 per pound egg salad What was the total cost before sales tax?
Use a maclaurin series in this table to obtain the maclaurin series for the given function. F(x) = x cos(5x)
By using a maclaurin series to obtain the maclaurin series for the given function is F(x) = x cos(5x) = \(1 - 25x^2/2! + 625x^4/4! - 15625x^6/6! + ...\)
To obtain the Maclaurin series for the function f(x) = x cos(5x), we need to write the Maclaurin series for cos(5x). The Maclaurin series for cos(x) is: \(cos(x) = 1 - x^2/2! + x^4/4! - x^6/6! + ...\)
Using this formula, we can substitute 5x for x and obtain the Maclaurin series for cos(5x): cos(5x) =\(1 - (5x)^2/2! + (5x)^4/4! - (5x)^6/6! + ...\)
\(= 1 - 25x^2/2! + 625x^4/4! - 15625x^6/6! + ...\)
We can substitute this series into the original function f(x) = x cos(5x) and obtain its Maclaurin series: f(x) = x cos(5x)
\(= x[1 - 25x^2/2! + 625x^4/4! - 15625x^6/6! + ...]\)
\(= x - 25x^3/2! + 625x^5/4! - 15625x^7/6! + ...\)
This is the Maclaurin series for the function f(x) = x cos(5x). It is obtained by substituting the Maclaurin series for cos(5x) into the original function and simplifying the resulting series. Maclaurin series are useful for approximating functions using polynomials. By truncating the series after a certain number of terms, we can obtain a polynomial that approximates the original function to a certain degree of accuracy. The accuracy of the approximation depends on the number of terms in the series that are used. The more terms we include, the more accurate the approximation will be.
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Jayson has $18.00. He buys a ticket to the baseball game for $10.75.
How much money does Jayson have left? Draw or use bills and coins to solve.
A. $12.25
B. $10.25
C. $8.25
D. $7.25
Answer:
$7.25 or D
Step-by-step explanation:
First take the 18$ and the $10.75 and subtract 10.75 from 18 and get $7.25
a jar contains 10 red marbles and 30 blue marbles. what is the probability of randomly selecting a red marble from the jar? (2.) 10/30 10/40 1/10 1/40
The probability of randomly selecting a red marble from the jar is 1/4 or 0.25 (25%).
The probability of randomly selecting a red marble from the jar can be calculated by dividing the number of red marbles by the total number of marbles in the jar. In this case, there are 10 red marbles and 30 blue marbles, so the total number of marbles is 40. Therefore, the probability of selecting a red marble is 10/40 or simplified to 1/4. This means that there is a 25% chance of selecting a red marble from the jar at random. The answer to your second question is 10/30, 10/40, 1/10, and 1/40 are all potential answer choices, but the correct answer is 1/4.
A jar contains 10 red marbles and 30 blue marbles, making a total of 40 marbles in the jar. To find the probability of randomly selecting a red marble from the jar, you need to divide the number of red marbles by the total number of marbles.
The probability of selecting a red marble is:
(10 red marbles) / (40 total marbles) = 10/40
Simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 10:
10/40 = 1/4
So, the probability of randomly selecting a red marble from the jar is 1/4 or 0.25 (25%).
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A playground is located on a triangular piece of land. Two sides of the playground are 157 feet long and they meet at an angle of 65°. Your are hired to build a fence around the playground. Find the cost of the fencing material needed if it will cost $11.75 a foot.
Answer:
$5,671.84
Step-by-step explanation:
To find the third side, we can use the law of cosines:
c^2 = a^2 + b^2 - 2ab*cos(theta)
c^2 = 157^2 + 157^2 - 2*157*157*cos(65)
c^2 = 28463.7649
c = 168.71 feet
The perimeter of the playground is:
P = 157 + 157 + 168.71 = 482.71 feet
If each foot costs $11.75, the final cost is:
Cost = 482.71 * 11.75 = $5,671.84
PLS HELP
if u do ill mark u branliest
Hello there!
15 is a term so the first digit in the code is 4.
15-3y is an expression so the second digit in the code is 5
4 5 x x x is the code right now
Now, let's solve the third puzzle:
4(2y-3)-2y=24
8y-12-2y=24
Combine like terms:
6y=36
x=6
4 5 4 x x is the code right now
The next problem:
1/3(12x-3)=7
4x-1=7
4x=8
x=2
4 5 4 2 x is the code right now
Problem 5: I think it's infinite solutions
4 5 4 2 4 is the code!
I hope it is correct! If it isn't, don't report and send me more puzzles! I would love to strain my brain!
Your friend, \(GraceRosalia\)
Answer:
1) 15 is a variable (2)
2) 15y-3 is a term (4)
3) y=6 (4)
4) x=2 (2)
5) infinite solutions (4)
the code is 24424
Step-by-step explanation:
Branliest For Correct answer
Please I need help
Factor Completely
a^2 - a - 20
Answer:
\(\left(a+4\right)\left(a-5\right)\)
Step-by-step explanation:
Break the expression into groups.
=(a^2+4a)+(−5a−20)
Factor out a from a2+4a: a(a+4)
Factor out −5 from −5a−20: −5(a+4)
=a(a+4)−5(a+4)
Write the number 375000000 in standard form
\(\huge \bf༆ Answer ༄\)
The given number in standard form is ~
\({ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:3.75 \times 10 {}^{8} \)
No more asking me to click on links answer truthfully
hey can someone help me pls *ANSWER ASAP*
This is a translation of 2 units to the left and 5 units up, so the correct option is the first one.,
Which is the translation applied?Remember that a vertical translation of N units is:
g(x) = f(x) + N
if N < 0 the translation is down.
if N > 0 the translation is up.
And a horizontal translation of N units is:
g(x) = f(x + N)
If N > 0 the translation is to the right.
if N < 0 the translation is to the left.
Here we have the transformation:
f(x) = x²
g(x) = (x + 2)² + 5
So this is a translation of 2 units to the left and 5 units up.
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someone help pleaseee il give brainliest
Answer:
-1/6
Step-by-step explanation:
. Anna was thinking of a number. She told Bill that if he squared her number followed by subtracting 11 times her, and adding 4, then he would get -26. What number(s) could Anna be thinking of?
Answer:
Anna's number could be 5 and it could be 6.
Step-by-step explanation:
Let Anna's number be represented by x.
If Bill squared her number followed by subtracting 11 times her number, and adding 4, then he would get -26.
This implies that:
\(x^2 - 11x + 4 = -26\)
This is a quadratic equation and we can solve for x by factorization.
\(x^2 - 11x + 4 = -26\\\\=> x^2 - 11x + 4 + 26 = 0\\\\x^2 - 11x + 30 = 0\\\\x^2 -6x-5x + 30 = 0\\\\x(x - 6) - 5(x - 6) = 0\\\\(x - 5) (x - 6) = 0\\\\\)
=> x = 5 and x = 6
Anna's number could be 5 and it could be 6.
A person orders 12 bags of mulch for landscaping. If each bag weighs p pounds, write an equation to represent the total number of pounds, T. (Avoid using the multiplication symbol if you can!)
An equation to represent the total number of pounds will be this:
Total number of pounds, T = 12p
What is an equation?An equation is a mathematical expression that shows how two statements are equal to each other. In this equation, we are told that the number of bags that were ordered for mulch was 12 bags. If one of the bags weighs p pounds, then the logical statement for the weight of 12 bags will be 12 multiplied by the weight of a unit bag.
We can decide to sum up the weight of the individual bags or simply multiply the number of the bags by the weight of each bag. So, the mathematical equation above is right.
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A beaker has a mass of 129 g. What is the mass of this beaker in kilograms?
Answer: 0.129 kg
Step-by-step explanation:
A gram to a kilogram can be found by dividing the value of grams by 1000, or multiplying the value by 0.001