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Nancy Believes That the Average Running Time of Movies Is

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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 population of the running times is normally distributed. 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 population of the running times is normally distributed.    a.Compute the sample mean and the standard deviation. b.State the null and alternative hypotheses. c.Using the critical value approach, test the hypotheses at the 10% level of significance. d.Using the p-value approach, test the hypotheses at the 10% level of significance.
a.Compute the sample mean and the standard deviation.
b.State the null and alternative hypotheses.
c.Using the critical value approach, test the hypotheses at the 10% level of significance.
d.Using the p-value approach, test the hypotheses at the 10% level of significance.

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Achievement-Oriented

A characteristic or approach that focuses on achieving high-level performance and meeting challenging goals.

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