You are testing H0 100 against Ha 100 based on an SRS of 2

You are testing H₀: = 100 against H_a: < 100 based on an SRS of 21 observations from a Normal population. The data give xbar = 9.4 s= 3.3

The value of the t statistic (±0.01) is ____

T statistic =sqrt(n) (Xbar-mu)/sigma =sqrt(21)(9.4-100)/3.3=-125.813