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Description: A quantity surveyor was asked to study the weight of beef in a particular company.He measured 10 beef pies and their mean weight was 180 g and the standard deviation was 40 g.What is the upper limit of the 95% confidence interval for the variance of

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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A quantity surveyor was asked to study the weight of beef in a particular company.He measured 10 beef pies and their mean weight was 180 g and the standard deviation was 40 g.What is the upper limit of the 95% confidence interval for the variance of the company (ie upper bound of a 95% confidence interval for the variance)?It can be assumed that the weight of the beef follows a normal distribution.

18.93
757.10
5333.33
133.33

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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