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In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered.                                                              Downtown Store          North Mall Store Sample size                                        25                                    20 Sample mean                                     $9                                    $8 Sample standard deviation             $2                                     $1   Formulate the null and alternative hypothesis to test whether there is a difference between the average hourly wages of employees of two branches of a department store. Compute test statistic. Using the critical approach, what is your conclusion? Let level of significance=.05 Using the p-value approach, what is your conclusion? Let level of significance=.05

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered.                                                              Downtown Store          North Mall Store Sample size                                        25                                    20 Sample mean                                     $9                                    $8 Sample standard deviation             $2                                     $1   Formulate the null and alternative hypothesis to test whether there is a difference between the average hourly wages of employees of two branches of a department store. Compute test statistic. Using the critical approach, what is your conclusion? Let level of significance=.05 Using the p-value approach, what is your conclusion? Let level of significance=.05

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered.

 

                                                           Downtown Store          North Mall Store

Sample size                                        25                                    20

Sample mean                                     $9                                    $8

Sample standard deviation             $2                                     $1

 

  1. Formulate the null and alternative hypothesis to test whether there is a difference between the average hourly wages of employees of two branches of a department store.
  2. Compute test statistic.
  3. Using the critical approach, what is your conclusion? Let level of significance=.05
  4. Using the p-value approach, what is your conclusion? Let level of significance=.05

 

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