Answered: The target temperature for a hot…

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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Question

The target temperature for a hot beverage the moment it is dispensed from a 190 vending machine is 150•F. The process standard deviation is known to be 3.3F. A sample of twenty-five randomly selected servings from a new machine undergoing a pre-shipment inspection gave a mean temperature of 151F. a. Vending customers get mad enough to complain if their beverage is not hot enough, but are forgiving if it is more than 150°F. Assuming that temperatures are normally distributed, test whether the population me an temperature of dispensed beverages is higher than 150° F. Use the .02 level of significance.

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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