A mail-order business prides itself in its ability to fill customers' orders in less than six calendar days, on average. Periodically, the operations manager selects a random sample of customer orders and determines the number of days required to fill the orders. On one occasion when a sample of 30 orders was selected, the average number of days was 6.65 with a sample standard deviation of 1.5 days. Assume the time in which an order is filled is normally distributed.
-How much evidence do we have that the standard is being met?
A) No evidence
B) Some evidence
C) Strong evidence
D) Very strong evidence
E) Extremely strong evidence
Correct Answer:
Verified
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