Mathematics
Mathematics, 03.04.2020 23:06, 0055babs

In a paper the authors distinguish between spending money on experiences (such as travel) and spending money on material possessions (such as a car). In an experiment to determine if the type of purchase affects how happy people are with the purchase after it has been made, 185 college students were randomly assigned to one of two groups. The students in the "experiential" group were asked to recall a time when they spent about $300 on an experience, and then they rated this purchase on three different happiness scales that were then combined into an overall measure of happiness. The students assigned to the "material" group were asked to recall a time that they spent about $300 on an object. The mean happiness score was 5.75 for the experiential group and 5.27 for the material group. Standard deviations and sample sizes were not given in the paper, but for purposes of this exercise, suppose that they were as given below. Experiential Materialn1 = 92n2 = 93s1 = 1.2s2 = 1.5Use the following Minitab output to carry out a hypothesis test to determine if the data supports the authors' conclusion that "experiential purchases induced more reported happiness." Useα = 0.05.(Use a statistical computer package to calculate the P-value. Use μexperiential − μmaterial. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)Two-Sample T-Test and CISample N Mean StDev SE Mean1 92 5.78 1.20 0.132 93 5.23 1.50 0.16Difference =μ1 − μ2Estimate for difference: 0.55000095% lower bound for difference: 0.219917T-Test of difference = 0 (vs >): T-Value = 2.76P-Value = 0.003 DF = 175t=df=P-value=

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