A random sample of 400 housewife shows that 32 of housewife are interested in doing business.

a) Construct a 98.02 per cent confidence interval for the proportion of the housewife are interested in doing business.

b) Calculate the standard error for this sampling distribution.

c) What is the point estimate of the population proportion of the housewife are interested in doing business?

Reference :

* Z & T -table distribution

https://drive.google.com/file/d/1F7WSECgudwiFAquk2unaZenUS84kBwBJ/view?usp=drivesdk

Confidence Interval for Confidence Interval for Mean Proportion Sample Size When n > 30 or o is known Infinite @ n/N 30 or o is known Finite @ n/N > 0.05 To find the sample size for proportion: Xtz- N -n 2 Jn VN-1 Z n = p(1- p) F T Distribution - when n