Answer: The value for the t statistic = 3
Explanation:
The formula to calculate the t-test statistic is given by :-
, here
is sample mean ,
is population mean and S.E. is standard error.
Given : The sample mean difference =

Standard error : 2
Sample size : 8
Then , the value for the t statistic will be :-

Hence, the value for the t statistic =3