SOLUTION: A researcher wishes to estimate that mean age of all runners who participate in the annual Vancouver marathon. A random sample of 36 participants indicated a mean age of 31.4 years
Algebra.Com
Question 748185: A researcher wishes to estimate that mean age of all runners who participate in the annual Vancouver marathon. A random sample of 36 participants indicated a mean age of 31.4 years. It is known that the population standard deviation of ages is σ = 7.2 years.
Construct a 97% confidence interval for the population mean age.
Note: Express the confidence interval to 2 decimal places of accuracy.
Answer by lynnlo(4176) (Show Source): You can put this solution on YOUR website!
RELATED QUESTIONS
In order to test whether marathon races are bad for health, a researcher took a random... (answered by stanbon)
A market researcher wants to find a confidence interval estimate of the mean age of all... (answered by stanbon)
A market researcher wants to find a confidence interval estimate of the mean age of all... (answered by ewatrrr)
1. At a house, there are 6 seniors, 4 juniors, and 2 sophomores. If a committee of 3 is... (answered by stanbon)
Assume that blood pressure readings are normally distributed with μ = 111 and σ = 7.... (answered by Boreal)
All runners in the 2005 Fox Cities Half Marathon had a mean finishing time of 137 minutes (answered by math_tutor2020)
A medical researcher wishes to determine the percentage of females who take vitamins. He (answered by stanbon)
Suppose that 68% of the employees of a company participate in the company’s medical... (answered by Boreal)
A researcher wishes to estimate the mean amount of money spent per month on food by... (answered by Boreal)