1. State the null (Ho) and alternative (Ha) hypothesis of the following problems below. State if the hypothesis is one - tailed or two -tailed. a. A manager wants to know if the average length of board meetings is 3 hours. b. The researchers want to know if the proportion of car accidents in Balete Drive has increased from 5% of the total car accidents recorded in Quezon city a day. c. A teacher wants to know if there is a significant difference between the academic performance of HRM and Tourism students. d. The registrar wants to know if the average encoding time is lower than 30 minutes. e. The Office of the Discipline wants to know if the new policy on smoking has reduced the proportion of smokers this year than the previous year.

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