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Isabella gathered data on the average percentage of tips received by waitstaff in 31 restaurants in...

Isabella gathered data on the average percentage of tips received by waitstaff in 31 restaurants in New York City. She works through the testing procedure:

  • H0:μ=14%; Ha:μ≠14%
  • α=0.1 (significance level)
  • The test statistic is t0=x¯−μ0sn√=1.489.
  • The critical values are ±t0.05=±1.697.

Conclude whether to reject or not reject H0. Select two responses below.

Select all that apply:

  • Reject H0.

  • Fail to reject H0.

  • The test statistic falls within the rejection region.

  • The test statistic is not in the rejection region.

Solutions

Expert Solution

The test statistic is not in the rejection region.
Fail to reject H0.

                                

                                     

                                            

                                                                   

milcah answered 1 hour ago
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