A zoologist is interested in whether climate affects how high kangaroos can jump. In a random sample of gray kangaroos f...
A zoologist is interested in whether climate affects how high kangaroos can jump. In a random sample of gray kangaroos from an Australian forest, he found the mean jump height was x¯=286 inches with a margin of error of 15 inches.
Construct a confidence interval for the mean jump height of gray kangaroos.
Homework Answers
Solution:
The confidence interval is nothing but
Point estimate Margin of error
Here , sample mean
is given .This is the point estimate of the population
mean>
So , the required interval is
286 15
(286 - 15 , 286 + 15)
(271 , 301)
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