For each of the following, state the null hypothesis and the alternative hypothesis: a. Means sales of Celebrity Living over the years have been 1.52 million per week. A manager claims that sales have decreased. Ho: lJ 1-52 H12u1-52 b. The manager of Little Cakes Inc. states that an average of 1,200 muffins is sold each week in the retail store. One of the bakers feels that the average is greater than 1,200 and decides to test this claim. H01 _1,200.oo H1: _1.2oo.oo c. For the past three years, an insurance company has stated that its average claim amount is $2,080. The manager feels that this amount should be updated and takes a sample of 65 claims to see if there is a difference in the average claim amount. Ho: H 2080 H1: H 2080 cl. A machine on a production line is set to automatically fill each bottle with 600 mL of water. The quality control manager regularly takes random samples of the bottles from the production line to ensure that the machine is filling the bottles correctly. If not, the machine will need adjusting. Ho: _6oo H1: usoo