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A package delivery service wants to compare the proportion of on-time deliveries for two of its...

A package delivery service wants to compare the proportion of on-time deliveries for two of its major service areas. In City A, 303 out of a random sample of 379 deliveries were on time. A random sample of 263 deliveries in City B showed that 200 were on time. 1. Calculate the difference in the sample proportion for the delivery times in the two cities. p^CityA−p^CityB = 2. What are the correct hypotheses for conducting a hypothesis test to determine whether the proportion of deliveries that are on time in City A is different from than the proportion in City B? A. H0:pA=pB, HA:pA>pB B. H0:pA=pB, HA:pA

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Answer #1

The correct hypotheses for conducting a hypothesis test to determine whether the proportion of deliveries that are on time in City A is different from than the proportion in City B as follows:

Null Hypothesis : H0 : pA = pB

Alternative Hypothesis : HA : pA ≠ pB

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