Multiple Choice
A marketing survey involves product recognition in Ontario and British Columbia.Suppose the proportion of Ontario residents who recognized a product is
And the proportion of British Columbia residents who recognized the product is
.The survey found a 98% confidence interval for
-
Is (-0.023,-0.019) .Give an interpretation of this confidence interval.
A) We know that 98% of British Columbia residents recognized the product between 1.9% and 2.3% more often than Ontario residents.
B) We know that 98% of Ontario residents recognized the product between 1.9% and 2.3% more often than British Columbia residents.
C) We are 98% confident that the proportion of British Columbia residents who recognized the product is between 1.9% and 2.3% higher than the proportion of Ontario residents who recognized the product.
D) We know that 98% of all random samples done on the population will show that the proportion of British Columbia residents who knew the product is between 1.9% and 2.3% higher than the proportion of Ontario residents who knew the product.
E) We are 98% confident that the proportion of Ontario residents who recognized the product is between 1.9% and 2.3% higher than the proportion of British Columbia residents who recognized the product.
Correct Answer:

Verified
Correct Answer:
Verified
Q8: An Ontario study examined the effect of
Q12: A poll checking on the level of
Q18: A survey of randomly chosen adults found
Q29: A poll reported that 41 of 100
Q31: You wish to construct a 90% confidence
Q42: A two-sample z-test for two population proportions
Q45: Suppose the proportion of women who watch
Q45: A university wishes to compare the proportions
Q47: Use the given sample data to test
Q50: Suppose that Statistics Canada wants to compare