9 Continuing with the context of the previous problem We now assume the pop ulation mean is 189 still have o runners have a lower mean cholesterol level We collect a sample of cholesterol 40 But we suspect male cross country levels from 16 male cross country runners aged 20 34 and compute a sample mean of 172 a State your hypothesis Ho and Ha H M 189 Ha 4 189 b Find the P value for our sample and determine if it is significant at the a 0 05 level 2 tivo uct 4 172 0 40 n 16 the So c Does the sample provide enough evidence to reject the null hypothesis at the a 0 05 level 0 24 375 P X 172 in N 189 Jove P valve Can X M 35n we valve is 16 172 40 16 less than reject not less than 105 8 0 05 the null hypothesis