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5.4.36 Question Help * me The average math SAT score is 525 with a standard devi

ID: 3314702 • Letter: 5

Question

5.4.36 Question Help * me The average math SAT score is 525 with a standard deviation of 117. A particular high school claims that its students have unusually high math SAT scores. A random sample of 50 students from this school was selected, and the m ean math SAT score was 566. Is the high school justified in its claim? Explain. ualsince it does not lie within the range of a usual event, namely within 12 standard deviations stYes, because the z-score is of the mean of the sample means. Round to two decimal places as needed.) ch Conter Succe ia e Optio Tutor Enter your answer in the answer box and then click Check Answer. Tools All parts showing Clear All Check Answer Signin. McGraw highere..Lwebloc Hills Connect

Explanation / Answer

z score is given by (x-mean)/(s/sqrt(N))

thus z is (566-525)/(117/sqrt(50))=2.4779

The answer is right

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