Answered: A producer claims that his potato chips…

Name: USE 3 DECIMAL A producer claims that his potato chips weight is at lea
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Description: USE 3 DECIMAL A producer claims that his potato chips weight is at least 150 grams. The weight of the bag has a normal distribution with mean 150 grams and standard deviation of 4 grams. The manager tries to test night shift production weight is heav

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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USE 3 DECIMAL A producer claims that his potato chips weight is at least 150 grams. The weight of the bag has a normal distribution with mean 150 grams and standard deviation of 4 grams. The manager tries to test night shift production weight is heavier that day shift. Because of the complaints of the customers, quality control department select randomly 19 bags from the daily shift and find the mean as 146 grams and variance 9 grams and randomly selected 21 bags from the night shift and find the mean as 148 grams and variance 8 grams. If manager want to test the claim as night shift mean weight of the product is bigger than that of day shift at 1% level of significance . Calculate the test statistics. (H 1 : mu night shift > mu day shift).

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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