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1) Fill out the table below to determine your expected and observed values: Observed Expected 220 2) D.F. = (Hint: D.F. = k – 1) 3) x² critical value = (Value from the table below; based on D.F. and p-value)

1) Fill out the table below to determine your expected and observed values: Observed Expected 220 2) D.F. = (Hint: D.F. = k – 1) 3) x² critical value = (Value from the table below; based on D.F. and p-value)

MATLAB: An Introduction with Applications
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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Example 2: Department store A has four competitors: B, C, D, and E. Store A hires a consultant to determine if the number of shoppers is the same for each store. The consultant conducts a survey of 1100 randomly selected shoppers and reports his results about shopper preference below. Is there enough evidence using a significance level of 0.05 to conclude that the numbers are really the same? Store A В E # of shoppers 262 234 204 190 210 1) Fill out the table below to determine your expected and observed values: В Observed Expected 220 2) D.F. = (Hint: D.F. = k – 1) 3) x? critical value = (Value from the table below; based on D.F. and p-value) (0 – E)² 4) x? value = (Your calculated chi-square value) x E 5) Is there enough evidence using a significance level = 0.05 to conclude that the numbers of shoppers are really the same? How do you know?
Transcribed Image Text:Example 2: Department store A has four competitors: B, C, D, and E. Store A hires a consultant to determine if the number of shoppers is the same for each store. The consultant conducts a survey of 1100 randomly selected shoppers and reports his results about shopper preference below. Is there enough evidence using a significance level of 0.05 to conclude that the numbers are really the same? Store A В E # of shoppers 262 234 204 190 210 1) Fill out the table below to determine your expected and observed values: В Observed Expected 220 2) D.F. = (Hint: D.F. = k – 1) 3) x? critical value = (Value from the table below; based on D.F. and p-value) (0 – E)² 4) x? value = (Your calculated chi-square value) x E 5) Is there enough evidence using a significance level = 0.05 to conclude that the numbers of shoppers are really the same? How do you know?
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