Jerry wants to participate in a contest offered by his local gym. The contest will provide a free year of membership to the person that can most closely estimate the average age of all gym members. Jerry takes a sample of 150 members and calculates the 80% confidence interval for the average age (in years) of the gym members to be (27.6, 29.2). You may assume that the necessary conditions for calculating this confidence interval were met.
Jerry wants to participate in a contest offered by his local gym. The contest will provide a free year of membership to the person that can most closely estimate the average age of all gym members. Jerry takes a sample of 150 members and calculates the 80% confidence interval for the average age (in years) of the gym members to be (27.6, 29.2). You may assume that the necessary conditions for calculating this confidence interval were met.
1. Which of the following is the best interpretation of this confidence interval?
A. 80% of gym members are between 27.6 and 29.2 years of age.
B. There is an 80% chance the sample
C. There is an 80% chance the population mean is between 27.6 and 29.2 years of
age.
D. We believe the population mean is between 27.6 and 29.2 years of age.
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