In the past, the average SAT score for high school Seniors hasbeen 1260. If we l

Question

In the past, the average SAT score for high school Seniors hasbeen 1260. If we look at a sample of 35 Seniors, what is theprobability that the average score on the SAT is between 1257 and1262 if the standard deviation is 7.45? 1) can this problem be done? why or why not? (look at centrallimit theorem) 2) find the probability In the past, the average SAT score for high school Seniors hasbeen 1260. If we look at a sample of 35 Seniors, what is theprobability that the average score on the SAT is between 1257 and1262 if the standard deviation is 7.45? 1) can this problem be done? why or why not? (look at centrallimit theorem) 2) find the probability

Explanation / Answer

Yes it can be done. This is because we have a n greater that 25 therefore we can assumenormality of the distribution. =1260    s=7.45 n=35 t* will be used because is not given but s is. 2) P(1257

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