Find the critical 2 values. Assume that the normal distribution applies. Left-tailed test; 0:0.04 z=-1.75 z=1.75 z=1.645 =-1.645 Question 7 Section 9.1 #17e For the tests in parts (b), would the area corresponding to the Pvalue be? G) On the left of the mean On the right ofthe mean G) On both sides of the mean Question 9 10 Points Section 9.1 #21 Complete the full hypothesis test for the question below. Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna; Reference: Hummingbirds by K. Long and 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 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 Anna's hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and o = 0.70 grams. It is known that for the population of all Anna's hummingbirds, the mean weight is a = 4.55 grams. Determine whether the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.55 grams. Use a =0.01. What is the test statistic? A Z = 0.23 B Z=-2.33 C Z = - 2.80 D Z =-3.75Question 10 10 Points Section 9.1 #21 Complete the full hypothesis test for the question below. Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna; Reference: Hummingbirds by K. Long and 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 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 Anna's hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and o = 0.70 grams . It is known that for the population of all Anna's hummingbirds, the mean weight is a = 4.55 grams . Determine whether the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.55 grams. Use a =0.01 . What is the critical value? A -2.33 B 1.96 C 1.96 D 2.33Question 11 5 Points For Question 10... The type of test to be performed is a test A right - tail B left - tail C two - tail Question 12 10 Points For Question 10... What is the final conclusion? Reject the null hypothesis, H . There is not sufficient evidence to warrant rejection of the claim that the mean weight of the birds is less than 4.55 g. Fail to Reject the null hypothesis, H . There is not sufficient evidence to warrant rejection of the claim that the mean weight of the birds is less than 4.55 g. C Reject the null hypothesis, A . There is sufficient evidence to warrant rejection of the claim that the mean weight of the birds is less than 4.55 g. D Fail to Reject the null hypothesis, H . There is sufficient evidence to warrant rejection of the claim that the mean weight of the birds is less than 4.55 g