Answered: 2. A company supplying coffee machines…

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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2. A company supplying coffee machines has one machine located at a certain point of sale. It is known that the amount of coffee dispensed by this machine is normally distributed with a population variance of 0.5 units of coffee per cup. The machine is observed for one week, and a sample of 50 cups of coffee is collected, from which an average amount of 150 units of coffee per cup is measured. Indicate the correct calculation to obtain a confidence interval of 95 % for the average amount of coffee supplied by the machine. Use the formula: Confidence Interval: =X +- Z (

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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