Question 1092189: Suppose your statistics instructor gave six examinations during the semester. You received the following grades (percent correct): 80, 77, 82, 83, 94, and 76. Instead of averaging the six scores, the instructor indicated he would randomly select five grades and compute the final percent correct based on the five percents.
a. How many different samples, without replacement, of five test grades are possible?
Different samples ___?
c.
Compute the mean of the sample means and compare it to the population mean. (Round your answers to 3 decimal places.)
The mean of the sample means is ____?
The population mean is ____?
Both means are
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! There are 6 tests and the number of ways to choose 5 is 6C5=6 ways.
the mean of the 6 samples will be 82
The population mean is 82.
Both means are the same, meaning that all the possible samples of a given size will have the same mean as the population mean.
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