Consider the null hypothesis that the average weight of male students in a certain college is 68 kilograms against the alternative hypothesis that it is unequal to 68. Ho:=68; Ha: 68. If the rejection region is <66 or > 69; Assume the standard deviation of the population of weights to be σ = 4. (a) With a random sample of size n = 25, calculate Type I error and Type II error (assuming μ= 69 when calculating Type II error). (b) How many samples are needed to achieve a Type II error when μ = 69 is 0.1 and Type I error is 0.1?

Consider the null hypothesis that the average weight of male students in a certain college is 68 kilograms against the alternative hypothesis that it is unequal to 68. Ho:=68; Ha: 68. If the rejection region is <66 or > 69; Assume the standard deviation of the population of weights to be σ = 4. (a) With a random sample of size n = 25, calculate Type I error and Type II error (assuming μ= 69 when calculating Type II error). (b) How many samples are needed to achieve a Type II error when μ = 69 is 0.1 and Type I error is 0.1?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

See similar textbooks