Sunday
March 29, 2015

Homework Help: statistics

Posted by Daniel on Saturday, October 15, 2011 at 4:04pm.

Starting with a population that is normally distributed with a mean of 100 and a standard deviation of 12, answer the following questions (if possible).
a. What is the probability of randomly drawing a single score between 100 and 106, p(100 < X < 106)?
b. What is the probability of drawing a random sample of 9 observations with a mean between 100 and 106, p(100 < M < 106)?
c. What is the probability of drawing a random sample of 36 observations with a mean between 100 and 106, p(100 < M < 106)?

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