Answered: Spending money of concessions at the…

Name: Spending money of concessions at the movies varies by age of the movie
Uploaded: 2024-03-20T07:07:00.000Z
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Description: Spending money of concessions at the movies varies by age of the movie goer. A random sample of 100 adults in their 40's found that 70 purchased popcorn. A random sample of 100 adults less that 40 found that 59 purchased popcorn. a. calculate test st

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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Spending money of concessions at the movies varies by age of the movie goer. A random sample of 100 adults in their 40's found that 70 purchased popcorn. A random sample of 100 adults less that 40 found that 59 purchased popcorn.

a. calculate test statistic

b. calculate p value and interpret

c. state conclusion

d. would a confidence interval for the difference contain zero? explain without constructing the interval.

I am stuck on the last question

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