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TABLE 12-6 According to an Article in Marketing News,fewer Checks Are Being

Question 7

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TABLE 12-6
According to an article in Marketing News,fewer checks are being written at the grocery store checkout than in the past.To determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance,the results of a survey of 500 shoppers in three consecutive years are obtained and presented below. TABLE 12-6 According to an article in Marketing News,fewer checks are being written at the grocery store checkout than in the past.To determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance,the results of a survey of 500 shoppers in three consecutive years are obtained and presented below. -Referring to Table 12-6,what is the form of the null hypothesis? A) H<sub>0</sub> : π<sub>1</sub> = π<sub>2</sub> = π<sub>3</sub> B) H<sub>0 </sub>: π<sub>1</sub> = π<sub>2</sub> ≠ π<sub>3</sub> C) H<sub>0 </sub>: π<sub>1 </sub>≠ π<sub>2</sub> = π<sub>3</sub> D) H<sub>0 </sub>: π<sub>1</sub> ≠ π<sub>2</sub> ≠ π<sub>3</sub>
-Referring to Table 12-6,what is the form of the null hypothesis?


A) H0 : π1 = π2 = π3
B) H0 : π1 = π2 ≠ π3
C) H0 : π1 ≠ π2 = π3
D) H0 : π1 ≠ π2 ≠ π3

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