Confidence interval for mean bmi

Reference no: EM13104753

In a previous example about the body mass index of young women we developed a 95% confidence interval for the mean body mass index (BMI) of women aged 20 to 29 yrs, 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 x(bar)=26.8 and standard deviation s=7.42. What is the 95% confidence interval for the mean BMI of all young women?

Reference no: EM13104753

Questions Cloud

Holding period return and confidence interval : You are looking at a bond to add in your portfolio. The bond has a 7.2 percent coupon (paid semiannually), 10 years left to maturity, and can be purchased at par ($1,000).

Exponential distribution with parameter lambda : Let T have the exponential distribution with parameter lambda, and let Y=Sqroot(T).

Would a negatively charged particle placed at point a : An electron is at the origin. (a) Calculate the electric potential VA at point A, x = 0.160 cm. V (b) Calculate the electric potential VB at point B, x = 0.170 cm. V What is the potential difference VB - VA? V

Confidence interval for percent increase in gambling : Our decisions depend on how the options are presented to us. Here's an experiment that illustrates this phenomenon. Tell 20 subjects that they have been given $50 but can't keep it all.

Confidence interval for mean bmi : In a previous example about the body mass index of young women we developed a 95% confidence interval for the mean body mass index

Case study - chris kolbe is master of change : Chris Kolbe is a master of change. Now president of Orig-inal Penguin, Kolbe essentially runs the division for itsparent company, Perry Ellis International. Original Pen-guin was a 1950s icon - the penguin logo appeared on Mun-singwear Penguin knit s..

Probability related to replacement time : Replacement times for CD players are normally distributed with mean of 7.1 years and a standard deviation of 1.4 years (based on data from "Getting Things Fixed," Consumer Reports). Find the probability that a randomly selected CD player will have..

Confidence interval for mean conductivity-stemplot : How well material conduct heat matters when designating houses, for example. Conductivity is measured in terms of watts of heat power transmitted per square meter of surface per degree Celsius of temperature difference on the two sides of the mate..

What are the volume and linear charge densities : A charge of 0.99 C is spread uniformly throughout a 18 cm rod of radius 4 mm. What are the volume and linear charge densities?

User Account

All Pages