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Suppose your statistics instructor gave six examinations during the semester. You received the following grades (percent...

Suppose your statistics instructor gave six examinations during the semester. You received the following grades (percent correct): 79, 73, 88, 90, 95, and 77. Instead of averaging the six scores, the instructor indicated he would randomly select two grades and compute the final percent correct based on the two percents. a. How many different samples, without replacement, of two test grades are possible? b. 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

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