A random sample of 49 lunch customers was taken at a restaurant. The average amount of time these customers stayed in the restaurant was 45 minutes with a standard deviation of 14 minutes.
a.
There is a .95 probability that the sample mean will provide a margin of error of 3.045 minutes or less
b.
There is a .95 probability that the sample mean will provide a margin of error of 4.022 minutes or less
c.
Can’t determine with the data
d.
There is a .05 probability that the sample mean will provide a margin of error of 4.022 minutes or less
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Answer:
d ok
Explanation:
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