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A grocery store manager wants to know if displaying cranberries near the entrance to the store increases the proportion of shoppers who buy them. To determine this, the manager flips a coin each morning to decide whether to place the cranberries near the entrance that day or to locate them in the produce section. The manager takes a random sample of shoppers over several days and calculates p, = the proportion of shoppers who buy cranberries when they are near the store entrance, and p, = the proportion of shoppers who buy cranberries when they are in the produce șection. Which of the following is a correct set of hypotheses for the appropriate test of significance?

A grocery store manager wants to know if displaying cranberries near the entrance to the store increases the proportion of shoppers who buy them. To determine this, the manager flips a coin each morning to decide whether to place the cranberries near the entrance that day or to locate them in the produce section. The manager takes a random sample of shoppers over several days and calculates p, = the proportion of shoppers who buy cranberries when they are near the store entrance, and p, = the proportion of shoppers who buy cranberries when they are in the produce șection. Which of the following is a correct set of hypotheses for the appropriate test of significance?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A grocery store manager wants to know if displaying cranberries near the entrance to the store increases the proportion of shoppers who buy them. To determine this, the manager flips a coin each morning to decide whether to place the cranberries near the entrance that day or to locate them in the produce section. The manager takes a random sample of shoppers over several days and calculates p,= the proportion of shoppers who buy cranberries when they are near the store entrance, and p,= the proportion of shoppers %3D who buy cranberries when they are in the produce şection. Which of the following is a correct set of hypotheses for the appropriate test of significance? Because most of the interval is negative, there is convincing evidence that a greater proportion of Speedy Airlines flights are on time. Because the point estimate (-0.05) is negative, there is convincing evidence of a difference in the population proportions. O Because 0 is in the interval, there is convincing evidence of a difference in the population proportions. Because the point estimate (-0.05) is negative, there is not convincing evidence of a difference in the population proportions. Because 0 is in the interval, there is not convincing evidence of a difference in the population proportions. O o
Transcribed Image Text:A grocery store manager wants to know if displaying cranberries near the entrance to the store increases the proportion of shoppers who buy them. To determine this, the manager flips a coin each morning to decide whether to place the cranberries near the entrance that day or to locate them in the produce section. The manager takes a random sample of shoppers over several days and calculates p,= the proportion of shoppers who buy cranberries when they are near the store entrance, and p,= the proportion of shoppers %3D who buy cranberries when they are in the produce şection. Which of the following is a correct set of hypotheses for the appropriate test of significance? Because most of the interval is negative, there is convincing evidence that a greater proportion of Speedy Airlines flights are on time. Because the point estimate (-0.05) is negative, there is convincing evidence of a difference in the population proportions. O Because 0 is in the interval, there is convincing evidence of a difference in the population proportions. Because the point estimate (-0.05) is negative, there is not convincing evidence of a difference in the population proportions. Because 0 is in the interval, there is not convincing evidence of a difference in the population proportions. O o
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