Tuesday

September 16, 2014

September 16, 2014

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

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.

- Statistics: Two Sample Population Confidence Inter -
**DrBob222**, Tuesday, September 11, 2007 at 4:40pmAll of the confidence interval qustions can be answered by reading the Wikepieda article cited in the last question above.

**Answer this Question**

**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 ...