I have a statistics assignment due at midnight and am having trouble with the subject. I'm trying to understand some of

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I have a statistics assignment due at midnight and am having

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Hi, I have a statistics assignment due at midnight and am having trouble with the subject. I'm trying to understand some of these confidence interval problems JA: The Math Tutor can help you get an A on your homework or ace your next test. Tell me more about what you need help with so we can help you best. Customer: Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 15 Allen's hummingbirds has been under study in Arizona. The average weight for these birds is x = 3.15 grams. Based on previous studies, we can assume that the weights of Allen's hummingbirds have a normal distribution, with σ = 0.32 gram. (a) Find an 80% confidence interval for the average weights of Allen's hummingbirds in the study region. What is the margin of error? (Round your answers to two decimal places.) lower limit upper limit margin of error JA: Is there anything else the Math Tutor should be aware of? Customer: No I just need help with about 25 questions