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At the .05 level of significance, conduct a hypothesis test to determine if the mean waiting time differs from than 3.5 minutes. standard deviation (sigma) of 1.2 was installed in an effort to reduce checkout time. A sample of 45 customers was seleced 10. The mean checkout at a local supermarket is 3.5 minutes. New equipment was installed that has a known population Write the null and alternative hypothesis for the population mean to try the new equipment and their sample mean checkout time was 4.0 minnutes. a.

At the .05 level of significance, conduct a hypothesis test to determine if the mean waiting time differs from than 3.5 minutes. standard deviation (sigma) of 1.2 was installed in an effort to reduce checkout time. A sample of 45 customers was seleced 10. The mean checkout at a local supermarket is 3.5 minutes. New equipment was installed that has a known population Write the null and alternative hypothesis for the population mean to try the new equipment and their sample mean checkout time was 4.0 minnutes. a.

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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Make a decision (using p-value or Crit Val/Rej Reg) and interpret. standard deviation (sigma) of 1.2 was installed in an effort to reduce checkout time. A sample of 45 customers was selected 10. The mean checkout at a local supermarket is 3.5 minutes. New equipment was installed that has a known population At the .05 level of significance, conduct a hypothesis test to determine if the mean waiting time differs from than 3.5 minutes. to try the new equipment and their sample mean checkout time was 4.0 minutes. 11. A pe a. Write the null and alternative hypothesis for the population mean b. Calculate the Z test statistic. с. Find the p-value. d. probal
Transcribed Image Text:Make a decision (using p-value or Crit Val/Rej Reg) and interpret. standard deviation (sigma) of 1.2 was installed in an effort to reduce checkout time. A sample of 45 customers was selected 10. The mean checkout at a local supermarket is 3.5 minutes. New equipment was installed that has a known population At the .05 level of significance, conduct a hypothesis test to determine if the mean waiting time differs from than 3.5 minutes. to try the new equipment and their sample mean checkout time was 4.0 minutes. 11. A pe a. Write the null and alternative hypothesis for the population mean b. Calculate the Z test statistic. с. Find the p-value. d. probal
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