Answered: Attempt 4 Suppose an online…

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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Attempt 4

Suppose an online television and movie streaming service has determined that viewers who watched the entire first season of one of its original series take an average of 5.7801 days, with a standard deviation of 4.0205 days. One of their analysts wants to determine at a significance level of 0.05 whether new customers who begin watching the series within a week of the start of their subscription finish watching the season more quickly.

She selects a simple random sample of new customers who began watching the first season of the series during the first week of their subscription and calculates summary statistics, where ?μ is the mean amount of time it takes for new customers to watch the first season of the series.

Test of ?=5.7801 vs ?<5.7801The assumed standard deviation=4.0205Test of μ=5.7801 vs μ<5.7801The assumed standard deviation=4.0205

Sample size	Sample mean	Standard error
?	x¯	SE
1550	5.5797	0.10212

Solve for

P value =

Z =

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