SOLUTION: Science fiction novels average 290 pages in length. The average length of 10 randomly chosen novels written by I. M. Wordy was 365 pages in length with a standard deviation of 50

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Question 1177345: Science fiction novels average 290 pages in length. The average length of 10 randomly chosen novels written by I. M. Wordy was 365 pages in length with a standard deviation of 50. At a = 0.05 are Wordy's novels significantly longer than the average science fiction novel?
a) State the hypothesis

b) Find Critical Value


c) Find Test Value


d) Make a decision

e) Summarize your results
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Ho: Wordy is >290
Ha: Wordy is <=290
test is a t 0.95, df=9
critical value is t> 1.833
test is t=(365-290)/50/sqrt(10)
t=75*sqrt(10)/50
=4.74
reject Ho and conclude the novels are longer than 290 pages, p-value 0.0005.