Problema Solution

The average math SAT score is 511 with a standard deviation of 116. A particular high school claims that its students have unusually high math SAT scores. A random sample of 55 students from this school was selected, and the mean math SAT score was 552. Is the high school justified in its claim? Explain.

__, because the z-score (__) is ____ since it ____ within the range of a usual event, namely within ______ of the mean of the sample means.

*(round to two decimal places as needed)

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The average math SAT score is 511 with a standard deviation of 116. A particular high school claims that its students have unusually high math SAT scores. A random sample of 55 students from this school was selected, and the mean math SAT score was 552. Is the high school justified in its claim? Explain.

No__, because the z-score (_0.35_) is _usual___ since it _is___ within the range of a usual event, namely within __2____ of the mean of the sample means.

*(round to two decimal places as needed)