National Chengchi University

A 70. Suppose a population has a mean of 90 and a standard deviation of 28. If a random sample of size 49 is drawn from the population, the probability of drawing a sample with a mean between 80 and 100 is _____. M A. 0.9876. Calc B. 0.0124. C. 0.4938. D. 0.0062. D 71. Suppose a population has a mean of 400 and a standard deviation of 24. ................
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