SOLUTION: The mean height of the population of male high school students in a school district is 67.2 inches with a standard deviation of 2.8 inches 1. Random samples are drawn from the pop

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Question 879099: The mean height of the population of male high school students in a school district is 67.2 inches with a standard deviation of 2.8 inches
1. Random samples are drawn from the population. What is the mean of the sampling distribution of the sample mean?
2. Wha is the standard error of the mean for a random sample of 25 students? for a random sample of 64 students?
3. What interval captures 95% of the sample means for a sample size of 64 students?
Thank you
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
1. sample mean = 67.2
2. SE%5B25%5D+=+2.8%2Fsqrt%2825%29, SE%5B64%5D+=+2.8%2Fsqrt%2864%29
3. ME = 1.96(2.8/8)
CI: 67.2-ME < u < 67.2 + ME