Splash Mean Cosmetics Company claims that the number of clients served in their department has increased, and now averages over 180 clients per day. His superior wishes to test this claim. Suppose a sample is taken with the following results: n = 45 days, x bar = 210 clients (Assume 

Splash Mean Cosmetics Company claims that the number of clients served in their department has increased, and now averages over 180 clients per day. His superior wishes to test this claim. Suppose a sample is taken with the following results: n = 45 days, x bar = 210 clients (Assume 

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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Question

Splash Mean Cosmetics Company claims that the number of clients served in their department has increased, and now averages over 180 clients per day. His superior wishes to test this claim. Suppose a sample is taken with the following
results: n = 45 days, x bar = 210 clients (Assume  = 8 is known).

Using 6 steps
test the hypothesis at a 0.01 level of significance.

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