Question
A company claims that the hold times for customer service averages at most 10 minutes. A random sample of 24 hold times has a mean
A company claims that the hold times for customer service averages at most 10 minutes. A random sample of 24 hold times has a mean of 11.2 minutes with a standard deviation of 7.2 minutes. Is there enough evidence to support the claim at = 0.05? Assume the population is normally distributed.
Group of answer choices
No, since p-value of 0.211 is greater than 0.05, fail to reject the null. Claim is alternative, so is not supported
Yes, since p-value of 0.211 is greater than 0.05, fail to reject the null. Claim is null, so is supported
Yes, since p-value of 0.211 is less than 0.05, reject the null. Claim is null, so is supported
No, since p-value of 0.211 is greater than 0.05, reject the null. Claim is null, so is not supported
A coach claims that all players can run more than 1.5 miles. A random sample of 17 players finds that they can run an average of 1.7 miles with a standard deviation of 0.6 miles. Is there enough evidence to support the claim at of 0.01? Assume the population is normally distributed.
Group of answer choices
No, since p-value of 0.094 is greater than 0.01, fail to reject the null. Claim is alternative, so is not supported
Yes, since p-value of 0.094 is greater than 0.01, reject the null. Claim is alternative, so is supported
No, since p-value of 0.094 is less than 0.01, reject the null. Claim is alternative, so is not supported
Yes, since p-value of 0.094 is less than 0.01, reject the null. Claim is null, so is supported
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