In an experiment interested in the average weight of mosquitoes, 38 mosquitoes were weighed. The mean weight of the mosquitoes was found to be 9.2 mg, with a standard deviation of 0.8 mg. You wish to test the claim that the mean weight of mosquitoes is greater than 9.0 mg at the α = 0.10 level of significance. What is the Null Hypothesis?

Question 9 options:

A. x¯≠9.0

B. x¯>9.0

C. x¯<9.0

D. x¯=9.0