A supermarket claims that the average wait time at the checkout counter is less than 8 minutes. Assume that we know that

Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
Post Reply
answerhappygod
Site Admin
Posts: 899603
Joined: Mon Aug 02, 2021 8:13 am

A supermarket claims that the average wait time at the checkout counter is less than 8 minutes. Assume that we know that

Post by answerhappygod »

A Supermarket Claims That The Average Wait Time At The Checkout Counter Is Less Than 8 Minutes Assume That We Know That 1
A Supermarket Claims That The Average Wait Time At The Checkout Counter Is Less Than 8 Minutes Assume That We Know That 1 (65.59 KiB) Viewed 73 times
A supermarket claims that the average wait time at the checkout counter is less than 8 minutes. Assume that we know that the standard deviation of wait times is 2.5 minutes. We will test at a significance level of 10%. Consider HO: mu >= 8 H1: mu < 8 A random sample of 50 customers yielded an average wait time of 7.8 minutes. What is the critical value for the Zstat (Zstat is the Z-test statistic)? (Provide two decimal places)
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
Top
Post Reply

Return to “Archived Questions & Answers”