Question: The competing hypotheses for a particular hypothesis test are as

The competing hypotheses for a particular hypothesis test are as follows: H0: μ > 2500 seconds Ha: μ < 2500 seconds Assume the population standard deviation is known to be 140 seconds and that you intend to take a random sample of size 49. Using a significance level of .10,
a. state your decision rule in seconds.
b. If the sample mean is 2462 seconds, should you reject the null hypothesis? Explain.

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  • CreatedJuly 16, 2015
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