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Law Incorporation [45]
3 years ago
15

3. Suppose a family stability measure was administered in four public high schools to a sample of 24 students who attend the sch

ools. The scores below were obtained. Is there a difference in family stability between the four schools?
School A: 50, 50, 55, 60, 45, 55
School B: 55, 60, 65, 55, 70, 65
School C: 50, 65, 75, 55, 60, 65
School D: 70, 80, 65, 70, 75, 60
Mathematics
1 answer:
mihalych1998 [28]3 years ago
6 0
Ound your χ2 to three decimal places and round your P-value to four<span> decimal places.) 0. Ask for details; Follow · Report ... </span>Suppose<span> a </span>family stability measure<span> was </span>administered<span> in </span>four public high schools<span> to a </span>sample<span> of </span>24 students<span> who </span>attend<span> the </span>schools<span>. The </span>scores below<span> were obtained. Is there a difference in.</span>
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A) 15<br><br> B) 5<br><br> C) 12<br><br> D) 3
Contact [7]
By exterior angle of triangle:
17x+4+8x+1=80
x=3
3 0
3 years ago
Read 2 more answers
30 POINTS!!
Anuta_ua [19.1K]
Answer is D


Step by step explanation
7 0
3 years ago
I don’t know how to do it, please teach me !!!
cricket20 [7]

As described in z-distribution the answers are given below:

a) The 95% confidence interval estimate for the population mean spending by a customer on visiting salon per month is given as follows: (747, 853).

b) The sampling error at 95% confidence level is of: $35.78.

What is a z-distribution ?

The normal distribution with a mean of 0 and a standard deviation of 1 is referred to as the standard normal distribution (also known as the Z distribution) (the green curves in the plots to the right). It is frequently referred to as the bell curve since the probability density graph resembles a bell.

solution:

The bounds of the confidence interval are given as follows:

In which:

is the sample mean.

z is the critical value.

n is the sample size. is the standard deviation for the population.

The parameters for this problem are given as follows:

Hence the lower bound of the interval is of:

800 - 200 x 1.96/square root of 55  = 747.

The upper bound of the interval is of:

800 + 200 x 1.96/square root of 55  = 853.

The sampling error for a sample size of 120 is calculated as follows:

200 x 1.96/square root of 120 = $35.78.

To learn more about the z-distribution from the given link

brainly.com/question/4079902

#SPJ1

5 0
1 year ago
Find k, the constant of proportionality, for the data in this table. Then write an equation for the relationship.
VashaNatasha [74]

Answer:

k=\frac{32}{5},  y=\frac{32}{5}x

k=6.4, y=6.4x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

Find the value of the constant of proportionality k

take any ordered pair from the data

For x=25, y=160

k=\frac{y}{x}

substitute the values of x and y

k=\frac{160}{25}

simplify

k=\frac{32}{5}

The linear equation is equal to

y=\frac{32}{5}x

or

y=6.4x

7 0
3 years ago
What is solution to <br>12²-5²​
expeople1 [14]

Answer:

119.

Step-by-step explanation:

12x12 is 144

5x5 is 25

144-25 = 119

6 0
2 years ago
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