In testing the mean of a sample, calculating a positive value of the t-statistic (t) necessarily implies ______.
a. the research hypothesis has been supported
b. you have done your calculations correctly (without making a mistake)
c. the value of the t-statistic falls in the region of rejection
d. the sample mean is greater than the hypothesized population mean
d. the sample mean is greater than the hypothesized population mean
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