Question

Imagine that a researcher obtains a sample mean of 39 with a sample size 100 (N = 100). Additionally, please assume that the relevant population mean is 35 and that the relevant population standard deviation is 15. Under these circumstances, if the researcher conducted a two-tailed z test with an alpha level of 0.05, what conclusion should he or she reach, based on these data and the rules of hypothesis testing? When answering, please assume that the researcher is using a typical two-tailed null hypothesis indicating that there is no difference between means. Group of answer choices Reject the null hypothesis Fail to reject the null hypothesis Reject the alternative hypothesis There is not enough information to reach any of the conclusions listed above.

          Imagine that a researcher obtains a sample mean of 39 with a
sample size 100 (N = 100). Additionally, please
assume that the relevant population mean is 35 and that the
relevant population standard deviation is 15.  Under these
circumstances, if the researcher conducted a two-tailed z test with
an alpha level of 0.05, what conclusion should he or she reach,
based on these data and the rules of hypothesis testing?  When
answering, please assume that the researcher is using a typical
two-tailed null hypothesis indicating that there is no difference
between means.
Group of answer choices
Reject the null hypothesis
Fail to reject the null hypothesis
Reject the alternative hypothesis
There is not enough information to reach any of the conclusions
listed above.

Added by Jose D.

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