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1. The SAT test scores have an average value of 1200 with a standard deviation of...

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Statistics

1. The SAT test scores have an average value of 1200 with astandard deviation of 105. A random sample of 35 scores is selectedfor study.

A) What is the shape, mean(expected value) and standarddeviation of the sampling distribution of the sample mean forsamples of size 35?

B) What is the probability that the sample mean will be largerthan 1235?

C) What is the probability that the sample mean will fallwithin 25 points of the population mean?

D) What is the probability that the sample mean will be lessthan 1175?

Answer & Explanation Solved by verified expert
3.9 Ratings (645 Votes)
Let X be the SAT test scoresGiven X has a mean of 1200 and a standard deviation of 105Central limit theorem If X is a random variable with a meanand standard deviation then the    See Answer
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