Independent sample T test
Please use SPSS to analyze data below to compare means for two groups of cases.
1. Marks obtained by a group of students in Statistics
Female
71 65 55 70 73 82 85 86 63 72 82 55 61 68 80 70
Male
66 55 59 62 57 56 58 62 61 62 67 60 60 62 58 57 56 55 59 52
2. BP measurements for a sample of vegetarians and non vegetarians
vegetarians
118 114 121 126 125 128 109 119 125 114 112 110 115 116 108 117
non vegetarians
130 128 133 126 131 127 129 136 130 127 134 134 132 133 131 131 135 136 125 124
Question
1. Write an objective
2. Describe measurements in each group
3.Test if the variances are similar
4. Test if there is a significant difference in means between the two groups.
5.Obtain 95% confidence interval and interpret the result.
6. Perform a nonparametric test and compare the result
