Question

Suppose the mean of X bar is 1697, the standard deviation of X bar is 8.2....

Suppose the mean of X bar is 1697, the standard deviation of X bar is 8.2. Find the probability that X bar is between 1687 and 1707.

A. .7776

B. .6667

C. .5544

D. .4455

Math   Statistics-And-Probability   
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Answer #1

the probability that X bar is between 1687 and 1707 be:-

[ from standard normal table]

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