Can you help solve wuestion 1

CHAPTER TEST 461 Take this test as you would take a test in class. For this test, do the following. (a) Identify the claim and state Ho and Ha (b) Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed, and whether to use a z-test or a t-test. Explain your reasoning. (c) Find the critical value(s) and identify the rejection region(s). (d) Find the appropriate standardized test statistic. If convenient, use technology. (e) Decide whether to reject or fail to reject the null hypothesis. (f) Interpret the decision in the context of the original claim. 1. In a random sample of 1022 U.S. adults, 480 think that the U.S. government is doing too little to protect the environment. In another random sample of 1008 U.S. adults taken 10 years ago. 514 think that the U.S. government is doing too little to protect the environment. At a = 0.10, can you reject the claim that the proportion of U.S. adults who think that the U.S. government is doing too little to protect the environment has not changed? 2. A marine biologist claims that the mean length of male harbor seals is greater than the mean length of female harbor seals. The mean length of a random sample of 89 male harbor se rbor seals is 132 centimeters. Assume the population standard deviation is 23 centimeters. The mean length of a random s om sample of 56 female harbor seals is 124 centimeters. As 's. Assume the population standard deviation is 18 centimeters. At a = ( 1 a = 0.05. ca - can you sup ort the marine " support biologist's claim? 3. A researcher claims that serum copper increase in infants 9:02 PM C 8/10/2020