A confidence interval for a mean is (−13,14)-13,14. This interval would be wider if A.)The sample mean was larger or the variability of the data was larger. B.) The variability of the data was larger, or the investigator wanted to be more confident. C.) The investigator wanted to be more confident of their results, or there was more information. D.) The variability of the data was small, or the sample mean was larger. E.) None of the above.
A confidence interval for a mean is (−13,14)-13,14. This interval would be wider if A.)The sample mean was larger or the variability of the data was larger. B.) The variability of the data was larger, or the investigator wanted to be more confident. C.) The investigator wanted to be more confident of their results, or there was more information. D.) The variability of the data was small, or the sample mean was larger. E.) None of the above.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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A confidence interval for a mean is (−13,14)-13,14. This interval would be wider if
A.)The sample mean was larger or the variability of the data was larger.
B.) The variability of the data was larger, or the investigator wanted to be more confident.
C.) The investigator wanted to be more confident of their results, or there was more information.
D.) The variability of the data was small, or the sample mean was larger.
E.) None of the above.
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