Solve the problems below. Follow the steps on how to solve problems involving test of hypothesis on the population mean. 1. The manufacturer of a brand of canned tuna claims that each can has an average weight of 150 grams with a standard deviation of 8 grams. Suppose a random sample of 80 cans is tested and found to have an average weight of 145 grams, test the hypothesis that = 150 grams against the alternative hypothesis that 150 grams with a 0.01 level of significance. 2. A random sample of 8 records of the mean number of daily deliveries of pizza is 33 with a sample standard deviation is 3.21. At a 0.01 level of significance, can we reject the hypothesis that the mean number of daily deliveries is less than 35