# thof the hypothesiswould appear in a research report.112W15. Research indicates that the color red increases men'sattraction to women (Elliot and Niesta, 2008). In thentoriginal study, men were shown women's photographspresented on either a white or a red background.Photographs presented on red were rated significantlymore attractive than the same photographs mountedon white. In a similar study, a researcher preparesa set of 30 women's photographs, with 15 mountedon a white background and 15 mounted on red.One picture is identified as the test photograph, andappears twice in the set, once on white and once onred. Each male participant looks through the entireset of photographs and rates the attractiveness of eachwoman on a 10-point scale. The following table sum-marizes the ratings of the test photograph for a sampleof n 9 men. Are the ratings for the test photographsignificantly different when it is presented on a redbackground compared to a white background? Use atwo-tailed test with a = .01S0ns19domsuwET-900sin17. a2RedWhiteBackgroundBackgroundParticipant74A6bo57В308 0W B8C9DEF4718.39H2msxs 9789I6

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Asked Nov 27, 2019
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Number 15

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Step 1

The hypotheses appropriate for the test are as follows:

H0: µd = 0

H1: µd  ≠ 0

In this case, the appropriate test is paired t test,

The test statistic is t which is calculated as,

Step 2

where d-bar is the mean of the differences, µd0 is the hypothesized mean difference, sd-bar  is the standard deviation of the differences.

Step-by-step procedure to obtain the test statistic and critical value using Excel software:

• In Excel sheet, enter White Background and Red Background in different columns.
• In Data, select Data Analysis and Choose t-Test: Paired Two Sample for Means.
• In Variable 1 Range, select White Background and in Variable 2 Ra...

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