10. The table below summarizes results from a study of people who refused to answer sur-vey questions. Using a significance level of 0.05, test to see if the age group of people isindependent of their refusal to answer survey questions. (You may use calculator short-cuts, but you must still write your hypotheses, the numbers obtained from the calculator,and your conclusion.)Age18-2122-29 30-39 40-49 50-59 60 and over Totals262 252 143 14520910913629386020023285288 172 1832691291Responded 80Refused 14Totals 9411. Sam collects a sample of 200 hobbit heights and determines their average height is39.8 inches with a standard deviation of 4.4 inches. Assume the heights are normallydistributed (and do not use information from the Middle Earth Almanac in the last ques-tion).(a) Use Sam's sample to test his theory, with a 0.05 significance level, that the averageheight of a hobbit is actually 39.7 inches.(b) Use Sam's sample to test his theory, with a 0.05 significance level, that the standarddeviation in hobbit heights is less than 5.1 inches.

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10. The table below summarizes results from a study of people who refused to answer sur- vey questions. Using a significance level of 0.05, test to see if the age group of people is independent of their refusal to answer survey questions. (You may use calculator short- cuts, but you must still write your hypotheses, the numbers obtained from the calculator, and your conclusion.)

10. The table below summarizes results from a study of people who refused to answer sur- vey questions. Using a significance level of 0.05, test to see if the age group of people is independent of their refusal to answer survey questions. (You may use calculator short- cuts, but you must still write your hypotheses, the numbers obtained from the calculator, and your conclusion.)

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

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