Answered: Assuming normal distribution is a good…

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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Question

7. I am producing 400-gram loaf breads in one of my production lines and measured the
weights of 28 loaf breads from the same batch as shown in table below. (*see attached image for the table.)
L. Assuming normal distribution is a good approximation of this data set, using the calculated mean and standard deviation of a population, what is the probability that the loaf of bread has weight between 400 g and 415g?
M. If a bread weighing less than 390 g is to be rejected how many breads will be rejected in the sample? Assume that normal distribution is a good approximation of this data set.

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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