Mathematics, 27.11.2019 21:31 emilyplays474
Aresearcher believes that two populations have the same mean. she draws a sample of size 32 from each population and calculates the mean of the first sample to be 21.7, the mean of the second sample to be 28.6, and the standard deviation of the sampling distribution of differences between means to be 3.01. what is probability that a difference at least this great is due only to sampling error?
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Aresearcher believes that two populations have the same mean. she draws a sample of size 32 from eac...
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