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15.) A market
research worker interviewed a random sample of 18people about their
use of a certain product. The results, in termsof 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. Estimate the
populationproportion of users of the product.

Respuesta :

JeanaShupp

Answer: [tex]p=0.610[/tex]

 

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 =[tex]\hat{p}=\dfrac{11}{18}0.611111111111\approx0.61[/tex]

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

Thus the point estimate for population proportion : [tex]p=\hat{p}=0.610[/tex]

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