A Normale Nessuna spa.. Titolo 1 NAME SECTION Write the null and alternative hypotheses for each of the following examples. Determine If each is a case of a two-talled, a left-talled, or a right-tailed test. Find za the critical value. 1. To test If the mean price of houses is greater than $143,000. Let a = 10 Ho : H Hi : H 2. To test if the mean number of hours college students spend partying per week is different from 12. . Let a = 1% Ho : H H1 : H Test : 3.To test if the mean life of car batteries is less than 45 months. . Let a = 5% Ha : H za = H1 : H Test: 4. To test if the mean amount of time taken to do a certain job is more than 35 minutes.. Let a =5% Ho : H H1 : H 5. To test if the mean age of all college students is different from 23 years. . Let a = 5% Ho : H Hi : u Test: 6. To test if the mean amount of time spent per week watching sports on television by adult males is different from 9.5 hours. . Let a = 10% Ho : H Za= H1 : H Test: 7. To test if the mean GPA of all students at a university is lower than 2.9 . Let a = 10% Ho : Z a = H1 : p Test: 8. To test if the mean cholesterol level of all adult males in the United States is higher than 175. Let a = 1% Ho : LL Test: 9. To test if the mean amount of time spent doing homework by all fourth-graders is different from 5 hours a week." . Let a = 16 Test: MacBook Air