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Before the furniture store began its ad campaign, it averaged 163 customers per day. The manager is investigating if the average is larger since the ad came out. The data for the 12 randomly selected days since the ad campaign began is shown below:  177, 150, 195, 151, 161, 194, 186, 185, 178, 169, 150, 184 Assuming that the distribution is normal, what can be concluded at the αα = 0.10 level of significance? The test statistic ? z t  = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is ? ≤ >  α

Before the furniture store began its ad campaign, it averaged 163 customers per day. The manager is investigating if the average is larger since the ad came out. The data for the 12 randomly selected days since the ad campaign began is shown below:  177, 150, 195, 151, 161, 194, 186, 185, 178, 169, 150, 184 Assuming that the distribution is normal, what can be concluded at the αα = 0.10 level of significance? The test statistic ? z t  = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is ? ≤ >  α

MATLAB: An Introduction with Applications
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 163 customers per day. The manager is investigating if the average is larger since the ad came out. The data for the 12 randomly selected days since the ad campaign began is shown below: 

177, 150, 195, 151, 161, 194, 186, 185, 178, 169, 150, 184

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

  1. The test statistic ? z t  = (please show your answer to 3 decimal places.)
  2. The p-value = (Please show your answer to 4 decimal places.)
  3. The p-value is ? ≤ >  α
  4.  
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