A restaurant claims the customers receive their food in less than 16 minutes. A random sample of 39 customers

finds a mean wait time for food to be 15.8 minutes with a standard deviation of 0.7 minutes. At α = 0.04, can you support the organizations’ claim using the test statistic?

Claim is the alternative, reject the null so support the claim as test statistic (-1.78) is in the rejection region defined by the critical value (-1.75)

Claim is the null, fail to reject the null so support the claim as test statistic (-1.78) is not in the rejection region defined by the critical value (-1.75)

Claim is the alternative, fail to reject the null so cannot support the claim as test statistic (-1.78) is not in the rejection region defined by the critical value (-2.05)

Claim is the null, reject the null so cannot support the claim as test statistic (-1.78) is in the rejection region defined by the critical value (-2.05)

A manufacturer claims that their calculators are 6.800 inches long. A random sample of 55 of their calculators finds they have a mean of 6.812 inches with a standard deviation of 0.05 inches. At α=0.08, can you support the manufacturer’s claim using the p value?

Claim is the null, reject the null and cannot support claim as p-value (0.075) is less than alpha (0.08)

Claim is the null, fail to reject the null and support claim as p-value (0.038) is greater than alpha (0.08)

Claim is the alternative, fail to reject the null and support claim as p-value (0.075) is less than alpha (0.08)

Claim is the alternative, reject the null and cannot support claim as p-value (0.038) is greater than alpha (0.08)

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