The statistician plans to test the hypotheses, h subscript 0 baseline: mu= 76.4 versus h subscript alpha baseline: mu> 76.4, where μ = the true mean height of all trucks using α = 0.05. The statistician would like to increase the power of this test to reject the null hypothesis when μ = 77 inches. Which sample size would increase the power of this test? a. 50 b. 70 c. 90 d. 110