A school principal believes that students spend more time each day reading for pleasure in July than in April. She collects data on the mean number of minutes per day that a sample of 10 students spend reading for pleasure. The results are shown in the table. Difference Student April July
(July - April
1
20
25
5
2
42
44
2
3
28
35
7
34
57
23
5
37
40
3
6
25
31
6
7
57
60
3
8
45
46
1
9
65
75
10
10
42
46
4
Which of the following best describes the principal's conclusion, given a significance level of
0.05?