The distribution of sample means for a group of test
scores for samples of 100 scores is normal with a mean of 64.9 and a standard deviation of 1.9. Suppose you take a sample of 100 test scores and find that the mean is 66.8
How many standard deviations is the sample mean from the mean of the distribution of sample means? Round to the nearest tenth as needed.
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1.9 standard deviation(s) above the mean
1.0 standard deviation(s) above the mean
10.0 standard deviation(s) above the mean
0.9 standard deviation(s) above the mean