A local health center noted that in a sample of 400 patients, 80 ...

[mcmcdaniel]

A local health center noted that in a sample of 400 patients, 80 were referred to them by the local hospital.
 a. Provide a 95 confidence interval for all the patients who are referred to the health center by the hospital.
  b. What sample size would be required to estimate the proportion of all hospital referrals to the health center with a margin of error of .04 or less at 95 confidence?

Question 2

A monthly price index that is designed to measure changes in prices of goods sold in primary markets (i.e., first purchase of a commodity in non retail markets) is the
 a. Consumer price index.
  b. Producer price index.
  c. Dow Jones Average.
  d. Weighted aggregate price index.

[amandalm]

Answer to Question 1

a. .1608 to .2392
b. 385

Answer to Question 2

b

[mcmcdaniel]

TYSM

[mochi09]

Gracias!