PLZ help this is the last question

The output used to determine the significance of the F-test in an ANOVA summary report is the F-critical value.

The F-test is a statistical test used to compare the variance between the means of two or more groups, and the F-critical value is the value against which the calculated F-statistic is compared to determine if the differences between group means are statistically significant or not.

The F-critical value is calculated based on the degrees of freedom and the desired level of significance or alpha level. If the calculated F-statistic is greater than the F-critical value, the null hypothesis is rejected, and it is concluded that there is a significant difference between the means of the groups being compared.

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Answer:

the probability that a randomly chosen test-taker will score 142 or lower = 0.8643

Step-by-step explanation:

We are given;

Data point; x = 142

Mean; μ = 153

Standard deviation; σ = 10

So,let's find the z-score using;

z = (x - μ)/σ

z = (142 - 153)/10

z = -1.1

From the z-distribution table attached, the probability is;

P(z < -1.1) = 1 - 0.13567 ≈ 0.8643

Out of a population of 100,000, the number of people who read at least two newspapers is = 33,000.

Let's approach this problem using the inclusion-exclusion principle.

First, we can add up the proportions of people who read each paper to get:

P(I) + P(II) + P(III) = 10% + 30% + 5% = 45%

However, this includes the people who read two or more papers multiple times, so we need to subtract those out. We can calculate these as follows:

P(I&II) + P(I&III) + P(II&III) = 8% + 2% + 4% = 14%

2P(I&II&III) = 2%

Using the inclusion-exclusion principle, we can now find the proportion of people who read at least two papers:

P(at least 2 papers) = P(I) + P(II) + P(III) - (P(I&II) + P(I&III) + P(II&III)) + 2P(I&II&III)

Plugging in the values, we get:

P(at least 2 papers) = 45% - 14% + 2% = 33%

So, the number of people who read at least two newspapers is:

0.33 * 100,000 = 33,000

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Complete question is:

A certain town of population size 100,000 has three newspapers: I , II and III the proportions of townspeople that read these papers are:  

I= 10 percent

II= 30% percent

II=5 percent

I&II=8 percent

I&III=2 percent

II&III=4 percent

I&II&III=1 percent

How many people read at least two newspapers?

hm this is weird, i thought i answered the question. or maybe they're two different questions? line graph because i said so. i know im so helpful

Answer:

12 and 6

Step-by-step explanation:

Let the numbers be x and y

Sum of two numbers is 18.

 ⇒ x + y = 18  ----------------(II)

\(\sf \text{Reciprocal of x = $\dfrac{1}{x}$}\\\\ \text{Reciprocal of y =$\dfrac{1}{y}$}\)

Sum of reciprocals is 1/4

       \(\sf \dfrac{1}{x}+\dfrac{1}{y}=\dfrac{1}{4}\\\\ \dfrac{1*y}{x*y}+\dfrac{1*x}{y*x}=\dfrac{1}{4}\\\\\dfrac{y}{xy}+\dfrac{x}{xy}=\dfrac{1}{4}\\\)

            \(\sf \dfrac{x +y}{xy}=\dfrac{1}{4}\)

Plugin (x +y = 18)

               \(\dfrac{18}{xy}=\dfrac{1}{4}\\\\\)

Cross multiply,

           18*4   = 1*(xy)

              xy   = 72

                 \(x = \dfrac{72}{y}\)

Substitute x value in equation (I)

            \(\dfrac{72}{y}+y=18\\\\\text{Multiply the entire equation by y}\\\\\\ 72 + y^2=18y\\\)

        y² - 18y + 72 = 0

 y² - 12y - 6y + 72 = 0

y(y -12) - 6(y - 12) = 0

       (y - 12)(y -6 ) = 0

y - 12 = 0              ; y - 6 = 0

    y = 12              ; y = 6

Answer:

85,600:6,905.22

Step-by-step explanation:

Answer:

Given the information you provided, we can model cellular phone usage over time with an exponential growth model. An exponential growth model follows the equation:

`y = a * b^(x - h) + k`

where:

- `y` is the quantity you're interested in (cell phone usage),

- `a` is the initial quantity (34 million in 1995),

- `b` is the growth factor (1.22, representing 22% growth per year),

- `x` is the time (the year),

- `h` is the time at which the initial quantity `a` is given (1995), and

- `k` is the vertical shift of the graph (0 in this case, as we're assuming growth starts from the initial quantity).

So, our specific model becomes:

`y = 34 * 1.22^(x - 1995)`

To find the cellular usage in 2003, we plug 2003 in for x:

`y = 34 * 1.22^(2003 - 1995)`

Calculating this out will give us the cellular usage in 2003.

Let's calculate this:

`y = 34 * 1.22^(2003 - 1995)`

So,

`y = 34 * 1.22^8`

Calculating the above expression gives us:

`y ≈ 97.97` million.

So, the cellular phone usage in 2003, according to this model, is approximately 98 million.

Answer:

(-1,-2)

Step-by-step explanation:

Hello!

The solution to the system is at the intersection between the two graphed lines.

Remember that a coordinate is written in (x,y) format, so we take the x-value of the points and the y-value of the point.

The coordinate is (-1, -2).

Answer:

10 miles

Step-by-step explanation:

Answer:

50 miles

Step-by-step explanation:

\(a^{2}\) + \(b^{2}\) = \(c^{2}\)

\(30^{2}\) + \(40^{2}\) = \(c^{2}\)

900 + 1600 = \(c^{2}\)

2500 = \(c^{2}\)

\(\sqrt{2500}\) = \(\sqrt{c^{2} }\)

50 = c

Since the y-intercept of the line is (0,1) and the line passes through the point (2,4) which is also satisfied by the equation of the line, the given equation represents the graph of the line.

The slope-intercept form of a line is y = mx +c where m is the slope of the line and c is the y-intercept.

The given equation of the line is y = (3/2)x + 1.

To find the y-intercept of the line, substitute x = 0 into the given equation,

y = (3/2)(0) + 1

y = 1

Note that the y-intercept of the graph of the line is also 1.

The graph of the line passes through points (2,4).

To verify whether the equation satisfies the coordinates of (2,4) or not, substitute the coordinates of the point into the given equation:

4 = (3/2)(2) + 1

4 =4

The equation is true.

Hence, it can be said that the given equation represents the graph of the line.

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Answer:

if you are solving for x, x= 4/3

Step-by-step explanation:

How to solve your problem:

1. Rearrange terms
2. Combine multiplied terms into a single fraction
3. Multiply by 1
4. Multiply all terms by the same value to eliminate fraction denominators
5. Cancel multiplied terms that are in the denominator
6. Multiply the numbers

7. Subtract 4 from both sides

8.Simplify

Answer:

X= 4/3

Hopes this helps! ^^

Even with the null hypothesis included in the confidence interval, there might be a statistically significant difference or correlation.

An estimate's level of uncertainty is indicated by a confidence interval, which is a range of numbers. A confidence interval is denoted by its endpoints.

Thus, even with the null hypothesis included in the confidence interval, there might be a statistically significant difference or correlation.

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The complete question is-

A confidence interval that includes the null hypothesis may still result in a statistically significant difference or association. (True /False).

Answer:

Step-by-step explanation:

The remainder of the synthetic division is 0, hence x + 2  is a factor of the polynomial

For an expression to be a factor of a polynomial, hence the remainder of the polynomial must be zero

Given the polynomial function x^3-2x^2-5x+6 divided by x + 2 according to the synthetic division

             x^2 - 4x + 3

x + 2  |  x^3-2x^2-5x+6

            x^3 + 2x^2

------------------------------------

                   -4x^2 - 5x      

                   -4x^2 - 8x

----------------------------------------

                               3x + 6
                               3x + 6

Since the remainder of the synthetic division is 0, hence x + 2  is a factor of the polynomial

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Hubble's constant in units of km/s/million LY is approximately 21.47.

what is  approximately ?

Approximately means close to or nearly, but not exactly. It is used to indicate that a value or number is an estimation or approximation, rather than an exact value. It is often used when a precise value is not necessary or when the exact value is unknown or difficult to determine.

In the given question,

To convert Hubble's constant from km/s/Mpc to km/s/million LY, we need to multiply it by a conversion factor that accounts for the difference in distance units. We can use the fact that 1 Mpc is equal to 3.26 million LY:

1 Mpc = 3.26 million LY

Therefore, to convert Hubble's constant from km/s/Mpc to km/s/million LY, we can use the following conversion factor:

1 Mpc / 3.26 million LY

Multiplying Hubble's constant by this conversion factor gives:

H = 70 km/s/Mpc x (1 Mpc / 3.26 million LY) = 21.47 km/s/million LY

Therefore, Hubble's constant in units of km/s/million LY is approximately 21.47.

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Answer:

it would be -4.5

Step-by-step explanation:

cause thats the middle

Answer:

I think it would be a rhombus.

Smaller triangle

base length = 7 inches

height = 10 inches

Larger triangle

base length = 12 inches

height = 15 inches

Let's check for the scale factors

For the base

Scale factor = 12/7 = 1.71

For the height

scale factor = 15/10 = 1.5

The larger triangle is not a scaled copy of the smaller one

Because from the above the scale factors of the base and height of the two triangles are not the same

Answer:

Step-by-step explanation:

let x be necromancers and y be wizards

if you know the amount of wizards and want to find the amount of necromancers. you just use y + 6

but if you know the amount of necromancers and want to find out the amount of wizards you just do x - 6

The number of students that took all the three classes is 40

The number of students are in Group 2 is 51 students

(i) To find the number of students who have taken all three classes, we need to subtract the number of students who have taken only two classes from the number of students who have taken at least one class.

Let's call the number of students who have taken all three classes "x".

The number of students who have taken Calculus and Sociology is 15 + x.

The number of students who have taken Calculus and Spanish is 20 + x.

The number of students who have taken Sociology and Spanish is 13 + x.

Adding these three equations, we have:

15 + 78 + 72 = 15 + x + 78 + x + 72 + x

solving for x

165 = 45 + 3x

120 = 3x

isolating x

So, x = 40.

hence, 40 students have taken all three classes.

(ii) To find the number of students in Group 2, we need to add the number of students who have taken at least one class to the number of students who have taken none of the classes.

Let's call the number of students in Group 2 "y".

The number of students who have taken at least one class is

32 + 22 + 16 - 10 - 8 - 11 + 5 = 36.

Therefore, y = 36 + 15 = 51.

So, there are 51 students in Group 2.

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An equation for the total cars and trucks for dealership A is: x + y = 164.

An equation for the total cars and trucks for dealership B is: 2x + 0.5y = 229.

The number of cars that dealership A sold is: 98 cars.

The number of trucks that dealership B sold is: 66 trucks.

In order to write a system of linear equations to describe this situation, we would assign variables to the number of cars sold and number of trucks sold, and then translate the word problem into an algebraic equation as follows:

Since the first dealership sold a total of 164 cars and trucks, a linear equation to model this situation is given by;

x + y = 164.

Additionally, the second dealership sold twice as many cars and half as many trucks as the first dealership, with a total of 229 cars and trucks;

2x + 0.5y = 229.

By solving the systems of linear equations simultaneously, we have:

2x + 0.5(164 - x) = 229

1.5x + 82 = 229

x = 98 cars.

For the y-value, we have;

2(98) + 0.5y = 229

0.5y = 229 - 196

y = 33/0.5

y = 66 trucks.

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Answer:

C) -2/9

Step-by-step explanation:

\(\displaystyle -\frac{1}{6}\biggr[3-15\biggr(\frac{1}{3}\biggr)^2\biggr]\\\\=-\frac{1}{6}\biggr[3-15\biggr(\frac{1}{9}\biggr)\biggr]\\\\=-\frac{1}{6}\biggr[3-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{27}{9}-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{12}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{4}{3}\biggr]\\\\=-\frac{4}{18}\\\\=-\frac{2}{9}\)

Answer:

Hence, Option (C) - 2/9 is the Answer:

Step-by-step explanation:

-1/6 [3 -15(1/3)^2]

-1/6(3 -15)(1/9))

-1/6(3 - 5/3)

-1/6 (4/3)

Hence, Option (C) - 2/9 is the Answer:

I hope it helps!

Answer:

90 + 2 = 92

180 - 92 = 88

Angle Q = 88

Step-by-step explanation:

All a triangles, angles should equal to 180.

Answer:

180 = 3 x + 90

Step-by-step explanation:

Hope it helps.Give me a brainliest please.

The height of rectangular prism B is 5 yards.

Let's first find the volume of rectangular prism B:

The volume of the solid figure = Volume of prism A + Volume of prism B

180 = 75 + length × width × height of prism B

105 = length × width × height of prism B

We know that the length of prism B is 7 yards and the width is 3 yards,

Substitute those values:

105 = 7 × 3 × height of prism B

105 = 21 × height of prism B

height of prism B = 105/21

height of prism B = 5

Therefore, the height of rectangular prism B is 5 yards.

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Answer:

2. The amount of soup in a can

3. The amount of chips in a bag of chips

5. The amount of chocolate that makes up a chocolate bar.

Step-by-step explanation:

Volume is the amount that a substance or object occupies, or that is enclosed within a container, so 1 and 4 wouldn't make sense since 1 is a shadow that doesn't take up anything three dimensional, and same goes with 4.

Answer:

The balance in the account after 3 years is approximately $2313.94.

Step-by-step explanation:

The formula for calculating the balance in a continuously compounded account is:

B = Pe^(rt)

Where:

B = balance

P = principal

e = Euler's number (approximately 2.71828)

r = annual interest rate (as a decimal)

t = time in years

Using the given values, we have:

P = $2000

r = 0.051 (5.1% expressed as a decimal)

t = 3

Plugging these values into the formula, we get:

B = 2000e^(0.051*3)

B = 2000e^(0.153)

B = $2313.94 (rounded to the nearest cent)

Therefore, the balance in the account after 3 years is approximately $2313.94.

Answer:

Step-by-step explanation:

Range is largest value - smallest value. 12-3=9! EZ

Answer:

48 minutes

30/5 = 6

6 x 8 = 48

Answer: 48

Step-by-step explanation:

if Tyreke can solve:

5 problems in 8 minutes

30 problems in ? minutes

(30*8)/5=48

Answer:

If going from top to bottom.

The 2nd And 5th choices are correct.

Explamation:

2nd choice: The shortest feather's length is 1 7/8 inches. The Longest feather's length is 4 2/8 inches. If you subtract 1 7/8 from 4 2/8 you get 2 3/8.

5th choice: The shortest feather's length is 1 7/8 inches. The Longest feather's length is 4 2/8 inches. If you add 4 2/8 & 1 7/8 you get 6 1/8.