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A survey of 25 randomly selected customers found the ages shown(in years). The mean is 34.00 years and the standard deviation is 9.24 years. a)
A survey of 25 randomly selected customers found the ages shown(in years). The mean is 34.00 years and the standard deviation is 9.24 years.
a) How many degrees of freedom does thet-statistic have?
b) How many degrees of freedom would thet-statistic have if the sample size had been 400?
25
25
37
26
49
17
36
26
36
35
47
39
23
39
43
19
48
27
37
30
46
28
38
30
44
a) Thet-statistic has_____ degrees of freedom.
(Simplify youranswer.)
b) If the sample size had been 400, thet-statistic would have_______ degrees of freedom.
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