The average math SAT score is 521 with a standard deviation of 112. A particular high school
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The average math SAT score is 521 with a standard deviation of 112. A particular high school claims that its students have unusually high math SAT scores. A random sample of 60 students from this school wasselected, and the mean math SAT score was 565. Is the high school justified in its claim? Explain.
(Yes, No), because the z-score ( enter your response here) is ▼ (not unusual, unusual) since it ▼ (lies, does not lie) within the range of a usual event, namely within ▼ (1 standard deviation, 2 standard deviations, 3 standard deviations) of the mean of the sample means. (Round to two decimal places as needed.)
Related Book For
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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