A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation of 240. The 95% confidence interval for the population mean SAT score is

A. 1340.06 to 1459.94.
B. 1341.20 to 1458.80.
C. 1349.93 to 1450.07.
D. 1320.32 to 1479.68.


Answer: A

Business

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What will be an ideal response?

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If the average number of customers served per hour is five, then the probability that the service exceeds 27 minutes for any customer is ______.

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