A departmental store, P, has four competitors: Q, R, S, and T. Store P hires a consultant to determine if the percentage of shoppers who prefer each of the five stores is the same. A survey of 1,200 randomly selected shoppers is conducted, and the results about which one of the stores shoppers prefer are given below. Find the test statistic. Store Number of shoppers P 282 Q 254 R 244 S 200 T 220   A.16.574 B.12.652 C.18.520 D.19.625

MATLAB: An Introduction with Applications
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Lesson 8Q1.
A departmental store, P, has four competitors: QRS, and T. Store P hires a consultant to determine if the percentage of shoppers who prefer each of the five stores is the same. A survey of 1,200 randomly selected shoppers is conducted, and the results about which one of the stores shoppers prefer are given below. Find the test statistic.
Store Number of shoppers
P 282
Q 254
R 244
S 200
T 220
 
A.16.574
B.12.652
C.18.520
D.19.625
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