Posted by **chelsea** on Monday, May 24, 2010 at 9:48pm.

A market research firm conducts telephone surveys with a 44% historical response rate. What is the probability that in a new sample of 400 telephone numbers, at least 150 individuals will cooperate and respond to the questions? In other words, what is the probability that the sample proportion will be at least 150/400 = .375?

## Answer This Question

## Related Questions

- Economics (40) - A market research firm conducts telephone surveys with a 42% ...
- Statistics (41) - A market research firm conducts telephone surveys with a 42% ...
- Statistics - if it can be assumed that 39.5% of all telephone #'s are unlisted, ...
- Data Mangement- Math - Paula moves to an area with a different telephone ...
- stat - A MAIL-ORDER FIRM HAS A CIRCULAR WHICH ELICITS A 10 % RESPONSE RATE. ...
- statistics please help! - Assume an office has two telephones (A and B) with ...
- statistics please help! - Assume an office has two telephones (A and B) with ...
- stats - Between 11 P.M. and midnight on Thursday night, Mystery Pizza gets an ...
- probability - In the state of Georgia, telephone numbers consists of 10 digits, ...
- statistics please help! - Assume an office has two telephones (A and B) with ...

More Related Questions