Wednesday
October 1, 2014

Homework Help: Statistics: Two Sample Population Confidence Inter

Posted by Carma on Tuesday, September 11, 2007 at 4:28pm.

Two Sample Population Confidence Interval:
Before an intensive TV advertising campaign, the producers of Nike athletic
shoes find that 30 of a random sample of 217 upper-income adults were aware
of their new leisure shoe line. A second random sample of 352 such adults
is taken after the campaign. Now 122 of the persons sampled can identity the
new line. Give a 99% confidence interval for the increase in the proportion of
upper income adults showing brand awareness.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - A simple random sample of 60 items resulted in a sample mean of 80...
Statistics (42) - A simple random sample of 60 items resulted in a sample mean ...
statistics - Use the given confidence level and sample data to find a confidence...
Statistics - Which of the following statements correctly interprets a 95% ...
Statistics - A 95% confidence interval for a population mean, ?, is given as (18...
Statistics - Suppose x has a mound-shaped distribution with sigma = 9 . A random...
Statistics - These are the only ones that I am having problems with. Please help...
Statistics 101 - A researcher plans to use a random sample of n= 500 families to...
business statistics - A random sample of size 15 taken from a normally ...
Statistics - Which of the following statements best describes the uncertainty ...

Search
Members