Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 19 Sep 2017 My Price 5.00

Hummingbirds Bill

Ecology: Hummingbirds 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 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  width=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 σ = 0.70gram. It is known that for thepopulation of all Anna’s hummingbirds, the mean weight is μ = 4.55 grams. Do 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.

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Maurice Tutor
(5)
Status NEW Posted 19 Sep 2017 09:09 AM My Price 5.00

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