QUESTION 1 This is from 6.2 H material. You will need the formula sheet, graphing calculator or calculator and potentially statkey A bus company advertised a mean time of 150 minutes for a trip between 2 cities. A consumber group had reason to believe that the mean time was more than 150 minutes. A sample of 40 trips showed a mean xbar-153 minutes and a standard deviation s=7.5 minutes. At the .05 level of significance, test the consumers group's belief. 1. What is the null hypothesis? Ho: In your answer use phat, p, xbar or mu. Example answer type p=550 2. What is the alternative hypothesis? Ha: In your answer use phat, p, xbar or mu. Example answer type xbar