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Can you help me with number 14 Question 14 4 points Saved The manager of a grocery store has taken a random sample of 144

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Can you help me with number 14

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Question 14 4 points Saved The manager of a grocery store has taken a random sample of 144 customers. The average length of time it took these 144 customers to check out was 3 minutes. It is known that the standard deviation of the population of checkout times is 1 minute. With a .99 probability, the sample mean will provide a margin of error of O a. . 163. O b. .215. O c. . 137. O d. 1.63

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