Answer :
The point estimator for the difference between two populations proportion in favor of this product is 0.09.
In the given question, the results of a recent poll on the preference of shoppers regarding two products are shown below.
Product Shoppers Surveyed Shoppers Favoring this Product a 800 560
b 900 549
We have to find the point estimate for the difference between the two population proportions in favor of this product.
n(1)=800, x(1)=560
n(2)=900, x(2)=549
P(1)=x(1)/n(1)
P(1)=0.7
P(2)=x(2)/n(2)
P(2)=0.61
The point estimator for the difference between two populations proportion in favor of this product is
P(1) - P(2)=0.7-0.61
P(1) - P(2)=0.09
To learn more about population proportions link is here
brainly.com/question/15087042
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