In a random sample of 150 adults over the age of 45, 25 say they have plaved in aband at least one time in their lives.a. Construct and interpret a 99% confidence interval for the proportion ecall adults over the age of 45 who have played in a band at least one time intheir lives. Include ALL PARTS FOR Creditb. Based on your work in part a, is there convincing evidence that less than20% of all adults over the age of 45 have played in a band at least one timein their lives? Justify your answer.

Hence, the required confidence interval for proportion is (0.088 , 0.245) .

Answered: In a random sample of 150 adults over…

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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