Nancy Believes That the Average Running Time of Movies Is

question 31

Essay

Nancy believes that the average running time of movies is equal to 140 minutes. A sample of 4 movies was taken and the following running times were obtained. Assume the distribution of the population is normally distributed.
a.State the null and alternative hypotheses.
b.Using a critical value, test the hypothesis at the 10% level of significance.
c.Using a p-value, test the hypothesis at the 10% level of significance.
d.Using a confidence interval, test the hypothesis at the 10% level of significance.
e.Could a Type II error have been committed in this hypothesis test?

Understand the role of strategic planning, implementation, and control in strategic management.

Understand the concept and types of forecasts in business strategic planning.

Grasp the strategic management process and its initial steps.

Recognize the importance and impact of social media tools in managerial practices.

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