These randomly selected households are surveyed. The numbers of people in the households are 2, 6, and 7. Assume that samples of size n = 2 are randomly selected with replacement from the population of 2, 6, and 7. Listed below are nine different samples. Complete (a) through (c). 2,2. 2,6. 2,7. 6,2. 6,6. 6,7. 7,2. 7,6. 7,7. Find the variance of each of the nine samples, then summarize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance values. (Type an integer or fraction. Use ascending order of the sample variances.) Compare the population variance to the mean of the sample variances. Choose the correct answer below. The population variance is equal to the square of the mean of the sample variances. The population variance is equal to the square root of the mean of the sample variances. The population variance is equal to the mean of the sample variances. Do the sample variances target the value of the population variance? In general, do the sample variances make good estimators of population variances? Why or why not? The sample variances do not target the population variance; therefore, sample variances do not make good estimators of population variances. The sample variances target the population variances; therefore, sample variances make good estimators of population variances. The sample variances do not target the population variance; therefore, sample variances make good estimators of population variances.

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Description: These randomly selected households are surveyed. The numbers of people in the households are 2, 6, and 7. Assume that samples of size n = 2 are randomly selected with replacement from the population of 2, 6, and 7. Listed below are nine different sam

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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These randomly selected households are surveyed. The numbers of people in the households are 2, 6, and 7. Assume that samples of size n = 2 are randomly selected with replacement from the population of 2, 6, and 7. Listed below are nine different samples. Complete (a) through (c).

2,2. 2,6. 2,7. 6,2. 6,6. 6,7. 7,2. 7,6. 7,7.

Find the variance of each of the nine samples, then summarize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance values.

(Type an integer or fraction. Use ascending order of the sample variances.)

Compare the population variance to the mean of the sample variances. Choose the correct answer below.

The population variance is equal to the square of the mean of the sample variances.
The population variance is equal to the square root of the mean of the sample variances.
The population variance is equal to the mean of the sample variances.

Do the sample variances target the value of the population variance? In general, do the sample variances make good estimators of population variances? Why or why not?

The sample variances do not target the population variance; therefore, sample variances do not make good estimators of population variances.
The sample variances target the population variances; therefore, sample variances make good estimators of population variances.
The sample variances do not target the population variance; therefore, sample variances make good estimators of population variances.

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