Suppose student test scores for a nationwide standardized test have an unknown distribution with mean 259 and standard deviation

Question

Suppose student test scores for a nationwide standardized test have an unknown distribution with mean 259 and standard deviation 33 points. A sample of size n = 38 is randomly taken from the population and the mean is taken. What is the probability that the resulting mean is more than 264.3 points?

You may use a calculator or the portion of the 2-table given above.
Round the final answer to four decimal places.
Provide your answer below:

Kunduz · Accepted Answer

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