A newspaper reported that 50% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 100 adults. a. Identify the population of interest in this...


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A newspaper reported that 50% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 100 adults.<br>a. Identify the population of interest in this study.<br>b. Identify the sample for the study.<br>c. Identify the parameter of interest in the study.<br>d. Find and interpret a 95% confidence interval for the parameter of interest.<br>newspapers<br>100 adults<br>coffee shops<br>a telephone survey<br>50% of adults<br>adults<br>c. Identify the parameter of interest. Choose the correct answer below<br>A.<br>x, the sample mean number of adults who say that some coffee shops are overpriced<br>B. p, the population proportion of adults who say that some coffee shops are overpriced<br>С.<br>р,<br>the sample proportion of adults who say that some coffee shops are overpriced<br>D. o, the population variance of adults who say that some coffee shops are overpriced<br>d. The 95% confidence interval for the parameter of interest is<br>(Round to two decimal places as needed.)<br>Interpret this confidence interval. Choose the correct answer below.<br>A. There is a 95% chance that the value of the parameter of interest is outside the interval.<br>B. We are 95% confident that the parameter of interest lies in the confidence interval.<br>C. We are confident that 95% of the population is described by the interval for the parameter of interest.<br>O D. We are confident that 95% of the population is outside the interval for the parameter of interest.<br>

Extracted text: A newspaper reported that 50% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 100 adults. a. Identify the population of interest in this study. b. Identify the sample for the study. c. Identify the parameter of interest in the study. d. Find and interpret a 95% confidence interval for the parameter of interest. newspapers 100 adults coffee shops a telephone survey 50% of adults adults c. Identify the parameter of interest. Choose the correct answer below A. x, the sample mean number of adults who say that some coffee shops are overpriced B. p, the population proportion of adults who say that some coffee shops are overpriced С. р, the sample proportion of adults who say that some coffee shops are overpriced D. o, the population variance of adults who say that some coffee shops are overpriced d. The 95% confidence interval for the parameter of interest is (Round to two decimal places as needed.) Interpret this confidence interval. Choose the correct answer below. A. There is a 95% chance that the value of the parameter of interest is outside the interval. B. We are 95% confident that the parameter of interest lies in the confidence interval. C. We are confident that 95% of the population is described by the interval for the parameter of interest. O D. We are confident that 95% of the population is outside the interval for the parameter of interest.

Jun 02, 2022
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