The researcher conducted an analysis for her employer and fo

The researcher conducted an analysis for her employer and found a t-value just short of the critical region using a two-tailed test. She has to fail to reject the null hypothesis, but fears this may affect her research funding and possibly her employment. Then she remembers one-tailed tests have larger critical regions. Is it ethical for to change her original hypothesis to a one-tailed test? Why or why not?

Solution

Is it ethical for to change her original hypothesis to a one-tailed test?

No , because the one tailed test is just when you are interesting in an specficic value for example greater than or lower than your value that you calculated ( mean, median, sd )

using 2 tailed is interesting only for cases that you are giving an specfici value and you want to know if the mean, median or sd is equal or not to thatd value