Posted by Laritza on Sunday, August 9, 2009 at 6:16pm.
A researcher has observed independent samples of females and males, recording how long each person took to complete his or her shopping at a local mall. The respective times, in minutes, are listed in file. Using the 0.025 level of significance in a onetail test, would females appear to exhibit more variability than males in the length of time shopping in this mall?
females males
26 33
35 40
75 50
63 32
36 28
71 39
54 32
68 33
37 31
48 36
42 26
43 37
73 38
55 21
47 39
71 48
27 38
56 36
37 59
25 59
88 53
42 59
33 35
66 38
45 24
53 28
46 45
74 28
58 23
51 15
58 61
48 31
48 17
42 55
55 31
50 55
61 37
28 36
41 20
58 48

statistics  Ms. Sue, Sunday, August 9, 2009 at 6:18pm
What's in this file?
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