The Internet Is Increasingly Available to the General Public, and This

question 2

Essay

The Internet is increasingly available to the general public, and this has not goneunnoticed by those who construct and give surveys. Researchers are using electronicsurveys more and more, which naturally leads to questions about the usefulness ofelectronic surveys compared to traditional mail and telephone surveys. One veryimportant aspect of surveys is the response rate. To study the difference in responserates between electronic and postal surveys, 377 college faculty members randomlyselected from a list of members in a single professional membership, the Mid-SouthEducational Research Association. Each person was assigned at random to eitherreceive the survey by the U. S. Postal Service (USPS) or by email. There were 189people in the USPS group and 188 people in the email group. Each group was sent afollow-up notice two weeks after the initial mailing. Each group was sent a follow-up notice two weeks after the initial mailing. Eighty-four of the USPS deliveredsurveys were returned, and 42 of the electronic surveys were returned.
(a) Construct and interpret a 95% confidence interval for the difference inproportions of surveys returned before being sent a follow-up notice for the mailand the email survey.
(b) In the context of this study, discuss the statistical significance and practicalsignificance of the results.
(c) To whom do you feel the results of this study can be generalized?
Justify yourresponse in a few sentences.

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Definitions:

Price of Sugar

The cost at which sugar is sold or bought in the market.

Cookies

Small pieces of data stored by a web browser that track, personalize, and save information about each user's session on a website.

Equilibrium Price

The pricing point where the volume of a good or service provided equals the volume demanded, achieving market harmony.

Market-Clearing Price

The price at which the quantity of a product offered is equal to the quantity of the product in demand, clearing the market.