Chrome File Edit View History Bookmarks People Tab Window Help APUS CLE : MATH120 B005 S 0 0 81% Sun 1:46 PM teresa eckman "Homework Week 7 (ADA) - MA X C webassign.net/web/Student/Assignment-Responses/submit?dep=23562923&tags=autosave#question4261349_4 G (e) State your conclusion in the context of the application. T There is sufficient evidence at the 0.01 level to conclude that the average yield for bank stocks is higher than that of the entire stock market. There is insufficient evidence at the 0.01 level to conclude that the average yield for bank stocks is higher than that of the entire stock market. Need Help? Read It Talk to a Tutor Plum Viewing Saved Work Revert to Last Response [10/20 Points] DETAILS PREVIOUS ANSWERS BBBASICSTATSACC 9.1.021. MY NOTES ASK YOUR TEACHER Filed b Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna). (Reference: Hummingbirds, K. Long, W. Alther.) Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution Bid Sh and o = 0.64 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is u = 4.30 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.30 grams? Use a = 0.10. (a) What is the level of significance? (Enter a number.) .10 Bid.jp State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? O Hoill = 4.3 9; H1: H.# 4.3 g; two-tailed Ho: H = 4.3 9; H1: H 4.3 g; right-tailed 13 Pone Weight .x1 O Ho: H