A Shoe Salesman Wishes to Check the Validity of His

Multiple Choice

A shoe salesman wishes to check the validity of his supplier's claim that the average length of the adult male foot is 9.34 in.He randomly samples 35 adult male customers and finds their average foot length to be 9.01 in.The standard deviation of foot length is known to be 0.75 in.What would be the test statistic for this test if the salesman thinks the supplier's claim is too high?

A) 2.60
B) -0.44
C) 0.44
D) -2.60