TEST 3 SHOW ALL WORK NO CREDIT WILL BE GIVEN FOR ANY PROBLEM FOR WHICH N0 WORK IS SHOWN-EVEN IF THE ANSWER I5 CORRECT 7. A recent poll of 7800 high school teachers shows that 2496 of them favor block scheduling. a. Find a point estimate for the proportion of all high school teachers that favor block scheduling. Ans 7a b. Estimate the true proportion of all high school teachers that favor block scheduling using an 93% CI. Ans 7b 8. In a random sample of 19 fifth graders, the mean weight is 61.4 pounds and the standard deviation is 8.2 pounds. Estimate the mean weight of all fifth graders using a 98% CI. Ans 8 9. From the time of diagnosis, 0 random sample of 200 liver cancer patients has a mean life expectancy of 6 months with a standard deviation of .31 months. Estimate the mean life expectancy for all liver cancer patients using a 96%. C.I