This Question: 1 pt Three randomly selected households are surveyed. The numbers

Question

This Question: 1 pt Three randomly selected households are surveyed. The numbers of people in the households are 4, 5, and 9. Assume that samples of size n with replacement from the population of 4, 5, and 9. Listed below are the nine different samples. Complete parts (a) through (c). 2 are randomly selected 4,4 4,5 4,9 5,4 5,5 5,9 9,4 9,5 9,9 distribution of the distinct variance values. Probabilit)y Type an integer or a fraction. Use ascending order of the sample variances.) b. Compare the population variance to the mean of the sample variances. Choose the correct answer below OA. The population variance is equal to the mean of the sample variances sd?B. The population variance is equal to the square of the mean of the sample variances. C. The population variance is equal to the square root of the mean of the sample variances. c. Do the sample variances target the value of the population variance? In general, do sample variances make good estimators of population ? Why or why not? O A. The sample variances target the population variance, therefore, sample variances do not make good estimators of population variances O B. The sample variances do not target the population variance, therefore, sample variances do not make good estimators of OC. The sample variances do not target the population variance, therefore, sample variances make good estimators of population variances. Click to select your answer(s). 6 2

Explanation / Answer

a)

here number of samples =9 ; hence probability of each sample =1/9

b)

option A

c)

option D

s^2 probability 0 1/3 0.5 2/9 8 2/9 12.5 2/9

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