According to shopper data, 97% of households purchase toilet paper. An analyst believes this is too low. To investigate, the analyst selects a random sample of 500 households and finds that 98% of them purchase toilet paper. We found that we do not have convincing evidence at the α = 0.05 level to conclude that the true proportion of all households that purchase toilet paper differs from 0.97. It can be difficult to detect such a small difference, such as from 0.97 to 0.98, even if the difference exists. What can be done to increase the power of this test to reject 0.97 if 0.98 is true? Check all that apply.
According to shopper data, 97% of households purchase toilet paper. An analyst believes this is too low. To investigate, the analyst selects a random sample of 500 households and finds that 98% of them purchase toilet paper. We found that we do not have convincing evidence at the α = 0.05 level to conclude that the true proportion of all households that purchase toilet paper differs from 0.97. It can be difficult to detect such a small difference, such as from 0.97 to 0.98, even if the difference exists. What can be done to increase the power of this test to reject 0.97 if 0.98 is true? Check all that apply.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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According to shopper data, 97% of households purchase toilet paper. An analyst believes this is too low. To investigate, the analyst selects a random sample of 500 households and finds that 98% of them purchase toilet paper. We found that we do not have convincing evidence at the α = 0.05 level to conclude that the true proportion of all households that purchase toilet paper differs from 0.97.
It can be difficult to detect such a small difference, such as from 0.97 to 0.98, even if the difference exists.
What can be done to increase the power of this test to reject 0.97 if 0.98 is true? Check all that apply.
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