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ne manager of the local health club is interested in determining the number of times members use the weight roomp- onth. She takes a random sample of 15 members and finds that over the course of a month, the average number of sits was 11.2 with a standard deviation of 3.2. Assuming that the monthly number of visits is normally distributed, hich of the following represents a 95% confidence interval for the average monthly usage of all health club members O a. 11.2 + 1.74

ne manager of the local health club is interested in determining the number of times members use the weight roomp- onth. She takes a random sample of 15 members and finds that over the course of a month, the average number of sits was 11.2 with a standard deviation of 3.2. Assuming that the monthly number of visits is normally distributed, hich of the following represents a 95% confidence interval for the average monthly usage of all health club members O a. 11.2 + 1.74

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
Section10.4: Distributions Of Data
Problem 19PFA
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The manager of the local health club is interested in determining the number of times members use the weight room per month. She takes a random sample of 15 members and finds that over the course of a month, the average number of visits was 11.2 with a standard deviation of 3.2. Assuming that the monthly number of visits is normally distributed, which of the following represents a 95% confidence interval for the average monthly usage of all health club members? O a. 11.2土1.74 Ob. 11.2 ± 1.62 O c. 11.2 ± 1.77 Od. 11.2 1.83 NEXT PAGE AGE O AY for anything
Transcribed Image Text:The manager of the local health club is interested in determining the number of times members use the weight room per month. She takes a random sample of 15 members and finds that over the course of a month, the average number of visits was 11.2 with a standard deviation of 3.2. Assuming that the monthly number of visits is normally distributed, which of the following represents a 95% confidence interval for the average monthly usage of all health club members? O a. 11.2土1.74 Ob. 11.2 ± 1.62 O c. 11.2 ± 1.77 Od. 11.2 1.83 NEXT PAGE AGE O AY for anything
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