Saturday
April 18, 2015

Homework Help: statistics

Posted by steven on Tuesday, April 20, 2010 at 3:58pm.

we developed a 95% z confidence interval for the mean BMI of women aged 20 to 29 years, based on a national random sample of 654 such women. we assumed there that the population standard deviation was known to be 7.5. in fact the sample data had mean BMI of 26.8 and standard deviation s=7.42. what is the 95%t confidence intervalfor the mean BMI of all young women?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - A 95% confidence interval for a population mean, ?, is given as (18...
statistics - A simple random sample of 60 items resulted in a sample mean of 80...
Statistics - An April 15, 2002 report in Time Magazine stated that the average ...
Statistics 101 - A researcher plans to use a random sample of n= 500 families to...
Statistics (42) - A simple random sample of 60 items resulted in a sample mean ...
Statistics - An April 15, 2002 report in Time Magazine stated that the average ...
statistics - An April 15, 2002 report in Time Magazine stated that the average ...
statistics - An April 15, 2002 report in Time Magazine stated that the average ...
STATISTICS - An April 15, 2002 report in Time Magazine stated that the average ...
statistics - An April 15, 2002 report in Time Magazine stated that the average ...

Members