Question: In a drive thru performance study, the average service time for a McDonald's restaurant was 222.68 seconds with a standard deviation of 8.727 seconds. A

In a drive thru performance study, the average service time for

In a drive thru performance study, the average service time for a McDonald's restaurant was 222.68 seconds with a standard deviation of 8.727 seconds. A random sample of 162 is taken from the population. What is the distribution of the sample mean? 1) Approximately normal with mean 222.68 and standard error 8.727. 2) 68% of sample averages will fall between 214 and 231.41. 3) Approximately normal with mean 222.68 and standard error 0.69. 4) 222.68 give or take 8.727. 5) Approximately normal with mean 17.5 and standard error 0.69

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