Mathematics, 06.05.2020 01:47 kernlife

Students in a small statistics class were asked to count the number of scars both on their "dominant" hand (the one they use most often) and on their "off" hand. The summary statistics are provided. It is of interest to compare the average number of scars on the dominant and off hands.

n

x bar
s

Dominant

25

1.92

2.326

Off

25

2.72

3.007

Difference (D - O)

25

-0.8

2.363

What is the value of the t test statistic?

Answers: 2

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