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Mathematics, 25.07.2020 19:01 Geo777
In 2010, the Physicians Foundation conducted a survey of physicians’ attitude about health care reform, calling the report “a survey of 100,000 physicians.” The survey was sent to 100,000 randomly selected physicians practicing in the United States: 40,000 via post‑office mail and 60,000 via email. A total of 2,379 completed surveys were received.
(a). What is the population sampled in this survey?
1. All Physicians practicing in the United States
2. All Physicians receiving the survey by mail.
3. All Physicians who completed the survey.
4. All Physicians receiving the survey by email.
What is the sample size?
sample size (n) =
(b). What is the rate of nonresponse? (enter your answer as percent rounded to two decimal places.)
rate of nonresponse =
(c). Why is it misleading to call the report “a survey of 100,000 physicians”?
1. It is misleading because only 2379 responses were received.
2. It is misleading because the respondents may not all have been physicians.
3. It is misleading because responses via email do not count toward survey results.
4. It is misleading because there was a low rate of nonresponse for this survey.
5. It is misleading because some were contacted by post‑office mail and some by email. They should have all been contacted using the same method.
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Mathematics, 21.06.2019 23:00, davisbrittany5784
Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.
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