Mathematics, 25.03.2021 22:00, henryzx900
A researcher wants to carry out a hypothesis test involving the mean for a sample of size n= 18. She does not know the true value of the population standard deviation but is reasonably sure that the underlying population is approximately normally distributed. Should she use a z-- test or a t-- test in carrying out the analysis? Why?
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A researcher wants to carry out a hypothesis test involving the mean for a sample of size n= 18. She...
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