Please help with this problem. It is all one.
webassign.net MAT151 Chapter 7 & 8 Homework - MAT151, 20SUD, section W1, Summer 1 2020 | WebAssign Home | Welcome to MyWarren have frequent wilderness underpasses designed for exclusive use by deer, elk, and other animals. In Colorado, there is a large group of deer that spend their summer months in a region on one side of a highway and survive the winter months in a lower region on the other side. To determine if the highway has disturbed deer migration to the winter feeding area, the following data were gathered on a random sample of 10 wilderness districts in the winter feeding area. Row B represents the average January deer count for a 5-year period before the highway was built, and row A represents the average January deer count for a 5-year period after the highway was built. The highway department claims that the January population has not changed. Test this claim against the claim that the January population has dropped. Use a 5% level of significance. Units used in the table are hundreds of deer. (Let d = B - A.) Wilderness District B: Before highway 2 7.2 3 4 5 8 10 A: After highway 10.3 9.1 8.2 12.9 9 5.8 10.0 4.1 17.4 9.9 16.2 18.9 11.6 4.0 20.5 7.1 15.2 8.3 12.2 7.3 (a) What is the level of significance? Enter a number. State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? O Ho: Mg = 0; H1: Ud 0; H1: Ud = 0; right-tailed O Ho: Md = 0; H1: Hd # 0; two-tailed O Ho: Mg = 0; H1: Hd > 0; right-tailed (b) What sampling distribution will you use? What assumptions are you making? The Student's t. We assume that d has an approximately uniform distribution. The standard normal. We assume that d has an approximately uniform distribution. The Student's t. We assume that d has an approximately normal distribution. The standard normal. We assume that d has an approximately normal distribution. What is the value of the sample test statistic? (Round your answer to three decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decimal places.) O P-value > 0.250 0.125
