When conducting a hypothesis test concerning the population mean,and the population standard deviation is unknown,the value of the test statistic is calculated as __________.

Question

Quizplus · Accepted Answer

When conducting a hypothesis test concerning the population mean and the population standard deviation is unknown, the value of the test statistic is calculated as t-statistic, given by the formula t = (x̄ - μ) / (s / sqrt(n)), where x̄ is the sample mean, μ is the hypothesized population mean, s is the sample standard deviation, and n is the sample size. Therefore, the value of the test statistic involves all these variables, and hence cannot be given a fixed value. Option B is a t-statistic formula that includes all the necessary variables, and hence the best choice.

When Conducting a Hypothesis Test Concerning the Population Mean,and the Population