Question

15.) A market

Answer 1

Answer: $p=0.610$

 

Step-by-step explanation:

Given : A market  research worker interviewed a random sample of 18 people about their  use of a certain product.

The results, in terms of Yes (Y) or No (N)  are as follows:

Y-N-N-Y-Y-Y-N-Y-N-Y-Y-Y-N-Y-N-Y-Y-N.

The number of people said "Yes" for the product= 11

Then, the sample proportion for the users of the product =$\hat{p}=\dfrac{11}{18}0.611111111111\approx0.61$

We know that the sample proportion is the best estimate for the population proportion.

Thus the point estimate for population proportion : $p=\hat{p}=0.610$