6.30 A random sample of n = 64 observations is drawn from a NW population with a mean equal to 20 and standard deviation equal to 16. a. Give the mean and standard deviation of the (repeated) sampling distribution of x. b. Describe the shape of the sampling distribution of x. Does your answer depend on the sample size? c. Calculate the standard normal z-score corresponding to a value of 16. d. Calculate the standard normal z-score corresponding to x = 23. e. Find P(<16). f. Find P(x23). g. Find P(16<< 23).

6.30 A random sample of n = 64 observations is drawn from a NW population with a mean equal to 20 and standard deviation equal to 16. a. Give the mean and standard deviation of the (repeated) sampling distribution of x. b. Describe the shape of the sampling distribution of x. Does your answer depend on the sample size? c. Calculate the standard normal z-score corresponding to a value of 16. d. Calculate the standard normal z-score corresponding to x = 23. e. Find P(<16). f. Find P(x23). g. Find P(16<< 23).

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 22SGR

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