Suppose you want to test the claim the the paired sample data given below come from a population for which the mean difference is ud=0.
x: 77 51 72 59 86 84 64
y: 81 72 91 65 72 83 91
Use a .01 significance level to find the following:
The mean value of the differences for the paired sample data
(b) The standard deviation of the differences for the paired sample data
(c) The t test statistic
(d) The positive critical value
(e) The negative critical value
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