You wish to test H0:=59.2H0:=59.2 versus Ha:<59.2Ha:<59.2 at a significance level of 0.05. You obtain a sample of size 13 with a mean of 57 and a standard deviation of 10.1. You believe that the population is normally distributed. ROUND YOUR ANSWERS TO THREE DECIMAL PLACES. (a). What is the test statistic? Do not round your interim calculations.