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1. Describe the distribution of the mean of the sample means for samples of sizes i) ii) 10 50. 2. Determine the probability that a random sample of 50 non-residential buildings will have a mean age of i) ii) 27.5 years or less between 28 and 33 years.

1. Describe the distribution of the mean of the sample means for samples of sizes i) ii) 10 50. 2. Determine the probability that a random sample of 50 non-residential buildings will have a mean age of i) ii) 27.5 years or less between 28 and 33 years.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Ex . 1. 7. The mean age of non-residential buildings is 30 years and their standard deviation 5 years. The distribution of the ages is not normal. 1. Describe the distribution of the mean of the sample means for samples of sizes i) ii) 10 50. 2. Determine the probability that a random sample of 50 non-residential buildings will have a mean age of i) 27.5 years or less ii) between 28 and 33 years.
Transcribed Image Text:Ex . 1. 7. The mean age of non-residential buildings is 30 years and their standard deviation 5 years. The distribution of the ages is not normal. 1. Describe the distribution of the mean of the sample means for samples of sizes i) ii) 10 50. 2. Determine the probability that a random sample of 50 non-residential buildings will have a mean age of i) 27.5 years or less ii) between 28 and 33 years.
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