An online book store wants to determine if there is an association between coupon redemption and gender. After a special coupon broadcast to its reward members, the following data on coupon redemption at checkout were collected. YesNoTotalMale66(76.17)66(55.83)132Female125(114.83)74(84.17)199Total191140331 What Chi-Square test is appropriate in this situation? Goodness-of-fit Homogeneity Independence Normal distribution

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Answered: An online book store wants to determine…

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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An online book store wants to determine if there is an association between coupon redemption and gender. After a special coupon broadcast to its reward members, the following data on coupon redemption at checkout were collected.

Yes No Total

Male 66(76.17) 66(55.83) 132

Female 125(114.83) 74(84.17) 199

Total 191 140 331

What Chi-Square test is appropriate in this situation?

Goodness-of-fit

Homogeneity

Independence

Normal distribution

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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