SOLUTION: A sample of 18 young adult men (20-30 years old) was sampled from a normal population. Each person was asked how many, minutes of sports they watched on television daily. The respo

Question 778420: A sample of 18 young adult men (20-30 years old) was sampled from a normal population. Each person was asked how many, minutes of sports they watched on television daily. The responses are listed below. It is known that the standard deviation () is 12.
55
60
65
74
66
37
45
68
64
65
58
55
52
63
59
57
74
65

Test to determine at the 5% significance level whether there is enough evidence to infer that the mean amount of television watched daily by young adult men is greater than 53 minutes.
Test to determine at 1% significance level whether there is enough evidence to infer that the mean amount of television watched daily by all young men is less than 53 minutes.
Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
First calculate the mean then the Z-score for x=53 and then use the Standard Normal Distribution table. For full solution contact me.
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