Answered: Before the furniture store began its ad…

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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Before the furniture store began its ad campaign, it averaged 242 customers per day. The manager is investigating if the average is larger since the ad came out. The data for the 16 randomly selected days since the ad campaign began is shown below:

270, 229, 249, 252, 230, 236, 236, 271, 231, 239, 268, 272, 251, 259, 256, 237

Assuming that the distribution is normal, what can be concluded at the αα = 0.10 level of significance?

Before the furniture store began its ad campaign, it averaged 242
customers per day. The manager is investigating if the average is
larger since the ad came out. The data for the 16 randomly
selected days since the ad campaign began is shown below:
270, 229, 249, 252, 230, 236, 236, 271, 231, 239, 268, 272, 251,
259, 256, 237
Assuming that the distribution is normal, what can be concluded at
the a = 0.10 level of significance?
a. For this study, we should use
t-test for a population mean
b. The null and alternative hypotheses would be:
Но:
H1:
c. The test statistic t v
(please show your
answer to 3 decimal places.)
d. The p-value
(Please show your answer to 4
decimal places.)

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