If the Value of the Sample Mean $\bar { x }$

Short Answer

If the value of the sample mean $\bar { x }$ is close enough to the hypothesised value of the population mean $\mu$ , then: $\begin{array}{|l|l|}\hline A&\text { the hypothesised value is definitely true.}\\\hline B&\text { the hypothesised value is definitely false.}\\\hline C&\text { we reject the null hypothesis. }\\\hline D&\text {we don't reject the null hypothesis. }\\\hline \end{array}$