2. the weights of baby kangaroos are known to have a mean of 125 pounds and a standard deviation of 15 pounds. if we obtained a random sample of 40 baby kangaroos. A. what is the probability that the sample mean will be between 120 and 130 pounds? B. what are the confidence intervals having the same number of samples with a 95% confidence level?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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2. the weights of baby kangaroos are known to have a mean of 125 pounds and a standard deviation of 15 pounds. if we obtained a random sample of 40 baby kangaroos.

A. what is the probability that the sample mean will be between 120 and 130 pounds?

B. what are the confidence intervals having the same number of samples with a 95% confidence level?

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