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For the following report about a statistical study, identify (if possible) a) the population; b) the population parameter of interest; c) the sampling frame; d) the sample; e) the sampling method, including whether or ne randomization was employed; f) who (if anyone) was left out of the study; and g) any potential sources of bias you can detect and any problems you see in generalizing to the population of interest. A magazine interviewed 1078 randomly selected people. The magazine reports that when asked when (if ever) the effects of global warming will begin to happen, 59% of respondents said the effects had alread begun. Only 8% thought that they would never happen. a) What is the population? O A. The population is the randomly selected people. O B. The population is all people. Oc. The population is everyone who does not believe in global warming. O D. The population is everyone who believes in global warming. O E. The population for the study is unclear. b) What is the population parameter of interest? O A. The population parameter is the proportion of people who responded to the magazine. O B. The population parameter is the randomly selected people. OC. The population parameter is the proportion of people who subscribe to the magazine and the proportion of people who do not subscribe to the magazine. O D. The population parameter is the proportion of people who believe that global warming has already begun and the proportion who think it will never happen. O E. The population parameter of interest is unclear. c) What is the sampling frame? O A. The sampling frame is all people who do not believe in global warming. O B. The sampling frame is all people.

For the following report about a statistical study, identify (if possible) a) the population; b) the population parameter of interest; c) the sampling frame; d) the sample; e) the sampling method, including whether or ne randomization was employed; f) who (if anyone) was left out of the study; and g) any potential sources of bias you can detect and any problems you see in generalizing to the population of interest. A magazine interviewed 1078 randomly selected people. The magazine reports that when asked when (if ever) the effects of global warming will begin to happen, 59% of respondents said the effects had alread begun. Only 8% thought that they would never happen. a) What is the population? O A. The population is the randomly selected people. O B. The population is all people. Oc. The population is everyone who does not believe in global warming. O D. The population is everyone who believes in global warming. O E. The population for the study is unclear. b) What is the population parameter of interest? O A. The population parameter is the proportion of people who responded to the magazine. O B. The population parameter is the randomly selected people. OC. The population parameter is the proportion of people who subscribe to the magazine and the proportion of people who do not subscribe to the magazine. O D. The population parameter is the proportion of people who believe that global warming has already begun and the proportion who think it will never happen. O E. The population parameter of interest is unclear. c) What is the sampling frame? O A. The sampling frame is all people who do not believe in global warming. O B. The sampling frame is all people.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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For the following report about a statistical study, identify (if possible) a) the population; b) the population parameter of interest; c) the sampling frame; d) the sample; e) the sampling method, including whether or not randomization was employed; f) who (if anyone) was left out of the study; and g) any potential sources of bias you can detect and any problems you see in generalizing to the population of interest. **A magazine interviewed 1,078 randomly selected people. The magazine reports that when asked when (if ever) the effects of global warming will begin to happen, 59% of respondents said the effects had already begun. Only 8% thought that they would never happen.** ### a) What is the population? - **A.** The population is the randomly selected people. - **B.** The population is all people. *(Correct Answer)* - **C.** The population is everyone who does not believe in global warming. - **D.** The population is everyone who believes in global warming. - **E.** The population for the study is unclear. ### b) What is the population parameter of interest? - **A.** The population parameter is the proportion of people who responded to the magazine. - **B.** The population parameter is the randomly selected people. - **C.** The population parameter is the proportion of people who subscribe to the magazine and the proportion of people who do not subscribe to the magazine. - **D.** The population parameter is the proportion of people who believe that global warming has already begun and the proportion who think it will never happen. *(Correct Answer)* - **E.** The population parameter of interest is unclear. ### c) What is the sampling frame? - **A.** The sampling frame is all people who do not believe in global warming. - **B.** The sampling frame is all people. *(Correct Answer)*
Transcribed Image Text:For the following report about a statistical study, identify (if possible) a) the population; b) the population parameter of interest; c) the sampling frame; d) the sample; e) the sampling method, including whether or not randomization was employed; f) who (if anyone) was left out of the study; and g) any potential sources of bias you can detect and any problems you see in generalizing to the population of interest. **A magazine interviewed 1,078 randomly selected people. The magazine reports that when asked when (if ever) the effects of global warming will begin to happen, 59% of respondents said the effects had already begun. Only 8% thought that they would never happen.** ### a) What is the population? - **A.** The population is the randomly selected people. - **B.** The population is all people. *(Correct Answer)* - **C.** The population is everyone who does not believe in global warming. - **D.** The population is everyone who believes in global warming. - **E.** The population for the study is unclear. ### b) What is the population parameter of interest? - **A.** The population parameter is the proportion of people who responded to the magazine. - **B.** The population parameter is the randomly selected people. - **C.** The population parameter is the proportion of people who subscribe to the magazine and the proportion of people who do not subscribe to the magazine. - **D.** The population parameter is the proportion of people who believe that global warming has already begun and the proportion who think it will never happen. *(Correct Answer)* - **E.** The population parameter of interest is unclear. ### c) What is the sampling frame? - **A.** The sampling frame is all people who do not believe in global warming. - **B.** The sampling frame is all people. *(Correct Answer)*
**Questionnaire on Sampling in a Study** **c) Identify the Sampling Frame:** - C. The sampling frame is all adults. - D. The sampling frame is all people who believe in global warming. - E. The sampling frame is unclear. **d) Determine the Sample for the Study:** - A. The sample is all people who do not believe in global warming. - B. The sample is all adults. - C. The sample is all people who believe in global warming. - D. The sample is the 1078 randomly selected people. - E. It is unclear what the sample for this study is. **e) Identify the Sampling Method Used:** - A. The sampling method used was cluster sampling. - B. The sampling method used was voluntary sampling. - C. The sampling method used was not clear. - D. The sampling method used was stratified sampling. - E. The sampling method used was systematic sampling. - F. The sampling method used was convenience sampling. **Additional Question:** Is the sampling method used random?
Transcribed Image Text:**Questionnaire on Sampling in a Study** **c) Identify the Sampling Frame:** - C. The sampling frame is all adults. - D. The sampling frame is all people who believe in global warming. - E. The sampling frame is unclear. **d) Determine the Sample for the Study:** - A. The sample is all people who do not believe in global warming. - B. The sample is all adults. - C. The sample is all people who believe in global warming. - D. The sample is the 1078 randomly selected people. - E. It is unclear what the sample for this study is. **e) Identify the Sampling Method Used:** - A. The sampling method used was cluster sampling. - B. The sampling method used was voluntary sampling. - C. The sampling method used was not clear. - D. The sampling method used was stratified sampling. - E. The sampling method used was systematic sampling. - F. The sampling method used was convenience sampling. **Additional Question:** Is the sampling method used random?
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