Tuesday

October 21, 2014

October 21, 2014

Posted by **Kya** on Thursday, April 5, 2012 at 12:10am.

- statistics -
**MathGuru**, Thursday, April 5, 2012 at 7:06pmThe following is a hint for you to get started.

Use a confidence interval formula for proportions:

CI95 = p ± (1.96)(√pq/n)

...where p = x/n, q = 1 - p, and n = sample size.

Using your data:

p = 166/200

q = 1 - p

n = 200

Convert fractions to decimals. Calculate using the formula above.

I'll let you take it from here.

**Answer this Question**

**Related Questions**

statistics - Assume a simple random sample has been taken, the conditions for ...

statistics - Assume a simple random sample has been taken, the conditions for ...

statistics - In a study of the effect of a medical treatment, a simple random ...

statistics - In a study of the effect of a medical treatment, a simple random ...

statistics - A new treatment for AIDS is to be tested in a small clinical trial ...

Statistics - In a study of the effect of a medical treatment, a simple random ...

Statistics - In a study of the effect of a medical treatment, a simple random ...

statistics - In a study designed to test the effectiveness of magnets for ...

statistics - Ina study designed to test the effectiveness magnets for treating ...

statistics - A group of scientists is studying whether a new medical treatment ...