Nancy believes that average running time of movies is equal, Ask an Expert

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Nancy believes that average running time of movies is equal to 140 minutes. A sample of 4 movies was taken and following running times were obtained.

150 150 180 170

a. Determine the null and alternative hypotheses.

b. Using standardized test statistic, test the hypothesis at the 10% level of significance.

c. Using p-value, test the hypothesis at the 10% level of significance.

d. Using confidence interval, test the hypothesis at the 10% level of significance.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91124097

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