Answered: Pick the Test (Z-test, Single Sample…

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

Pick the Test (Z-test, Single Sample T-test, Independent Sample T-test, Paired Sample Ttest, ANOVA):

. A Wisconsin cheese company read that, on average, a person in Europe consumes 25.83 kilograms of cheese per year with a standard deviation of 8.32 kilograms. The company’s sales director believes that Americans consume even more cheese. The company does a survey of a random sample of Americans and finds that they eat, on average, 27.86 kilograms of cheese per year with a standard deviation of 6.46 kilograms. Assume that cheese consumption among Americans is normally distributed.

Test:

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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