Analysis #5

Ashley Chrysler Analysis # 5 (a) Do females and males differ in current GPA? Females current GPA (3.333) does significantly differ from males (3.023). The two-sided p value of 0.004 is less than an alpha value of 0.05, meaning the null hypothesis should be rejected and t = -3.030 falls in the region of rejection. t(48) = -3.030, p = 0.004. Group Statistics gender of student N Mean Std. Deviation Std. Error Mean student's current gpa males 26 3.023 .3983 .0781 females 24 3.333 .3171 .0647 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t student's current gpa Equal variances assumed .370 .546 -3.030 Equal variances not assumed -3.058 Independent Samples Test t-test for Equality of Means df Significance One-Sided p Two-Sided p student's current gpa Equal variances assumed 48 .002 .004 Equal variances not assumed 47.023 .002 .004 Independent Samples Test t-test for Equality of Means Mean Difference Std. Error Difference 95% Confidence Interval of the Difference Lower student's current gpa Equal variances assumed -.3103 .1024 -.5161 Equal variances not assumed -.3103 .1015 -.5143 Independent Samples Test t-test for Equality of Means 95% Confidence Interval of the Difference Upper

student's current gpa Equal variances assumed -.1044 Equal variances not assumed -.1062 (b) Do males and females differ in the number of hours they watch television each day? The mean number of hours males watch television each day (13.04) is not significantly different from the number of hours females watch television each day (10.83). The two-sided p value of 0.204 is greater than an alpha value of 0.05, meaning the null hypothesis should be retained and t = 1.286 falls in the region of acceptance. t(48) = 1.286, p = 0.204 Group Statistics gender of student N Mean Std. Deviation Std. Error Mean amount of tv watched per week males 26 13.04 6.328 1.241 females 24 10.83 5.746 1.173 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t amount of tv watched per week Equal variances assumed .821 .369 1.286 Equal variances not assumed 1.291 Independent Samples Test t-test for Equality of Means df Significance One-Sided p Two-Sided p amount of tv watched per week Equal variances assumed 48 .102 .204 Equal variances not assumed 47.990 .101 .203 Independent Samples Test t-test for Equality of Means Mean Difference Std. Error Difference 95% Confidence Interval of the Difference Lower amount of tv watched per week Equal variances assumed 2.205 1.714 -1.242 Equal variances not assumed 2.205 1.707 -1.228