Asked by honeybee
Why is the standard deviation of the sample means less than the population standard deviation?
a. It is not less; taking a group of scores at a time introduces additional error.
b. The data is sampled twice, thereby reducing error.
c. It is not less; smaller samples will have greater variability.
d. The data is "condensed" by taking a group of scores at a time, so variability is reduced.
a. It is not less; taking a group of scores at a time introduces additional error.
b. The data is sampled twice, thereby reducing error.
c. It is not less; smaller samples will have greater variability.
d. The data is "condensed" by taking a group of scores at a time, so variability is reduced.
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