# Week 4 Practice Worksheet.docx - WEEK 4 PRACTICE WORKSHEET...

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WEEK 4 PRACTICE WORKSHEET1Week 4 Practice WorksheetPSY/315B. Taylor John
WEEK 4 PRACTICE WORKSHEET2University of Phoenix MaterialWeek 4 Practice WorksheetProvide a response to the following questions.Note:Each team member should compute the following questions and submit to the Learning Team forum. The team should then discuss each team member’s answers to ascertain the correct answer for each question. Once your team has answered all the questions, submit a finalized team worksheet.1.Two boats, the Prada (Italy) and the Oracle (USA), are competing for a spot in the upcoming America’s Cup race. They race over a part of the course several times. The sample times in minutes for the Prada were as follows: 12.9, 12.5, 11.0, 13.3, 11.2, 11.4, 11.6, 12.3, 14.2, and 11.3. The sample times in minutes for the Oracle were as follows: 14.1, 14.1, 14.2, 17.4, 15.8, 16.7, 16.1, 13.3, 13.4, 13.6, 10.8, and 19.0. For data analysis, the appropriate test is the t test: two-sample assuming unequal variances.The next table shows the results of this independent t test. At the .05 significancelevel, can you conclude that there is a difference in their mean times? Explain these results to a person who knows about the ttest for a single sample but who is unfamiliar with the ttest for independent means.
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