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3E1. Answer the question True or False: One way of reducing (decreasing) the width of a confidence interval is to reduce (decrease) the size of the sample taken. (u)True (n) False

3E1. Answer the question True or False: One way of reducing (decreasing) the width of a confidence interval is to reduce (decrease) the size of the sample taken. (u)True (n) False

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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4444444 3E1. Answer the question True or False: One way of reducing (decreasing) the width of a confidence interval is to reduce (decrease) the size of the sample taken. (u)True (n) False COOCOOCOOCOOCOO 3E1. The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of u=45 minutes and a standard deviation of o=10 minutes. A random sample of n=16 cars is selected. What is the σ Standard Error = of the mean? √n (p) 4.5 Minutes (7) 4.0 Minutes (r)2.5 Minutes (P)11.25 Minutes (M)2.8125 Minutes
Transcribed Image Text:4444444 3E1. Answer the question True or False: One way of reducing (decreasing) the width of a confidence interval is to reduce (decrease) the size of the sample taken. (u)True (n) False COOCOOCOOCOOCOO 3E1. The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of u=45 minutes and a standard deviation of o=10 minutes. A random sample of n=16 cars is selected. What is the σ Standard Error = of the mean? √n (p) 4.5 Minutes (7) 4.0 Minutes (r)2.5 Minutes (P)11.25 Minutes (M)2.8125 Minutes
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