Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).+ Suppose that In a remote part of the Grand Canyon, a random sample of six of these birds was 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 Is (1 = 4.60 grams. Do the data Indicate that the mean weight of these birds In this part of the Grand Canyon Is less than 4.60 grams? Use a = 0.10. se it Is known that for t the population of all Anna's hummingbirds, the mean weight (a) what is the level of significance? state the null and alternate hypotheses. Will you use a left-talled, right-talled, or two-talled test? O Ho: H = 4.6 9; Hi U > 4.6 9; right-talled O Ho: M = 4.6 9; Hjaj