Multiple Choice
A random sample of 30 airline flights during a storm had a mean delay of 40 minutes. The standard deviation was 5 minutes, and the standard error of the mean is 0.9129. Calculate a 90% confidence interval for the average delay for all flights during a storm.
A) (38.2, 41.8)
B) (38.4, 41.6)
C) (31.5, 48.5)
D) None of the above
Correct Answer:
Verified
Correct Answer:
Verified
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