a. Identify the population of interest. Choose the correct answer below. O coffee shops O adults 500 adults b. Identify the sample. Choose the correct answer below. a telephone survey newspapers O coffee shops c. Identify the parameter of interest. Choose the correct answer below. OA. p, the population proportion of adults who say that some coffee shops are overpriced OB. o2, the population variance of adults who say that some coffee shops are overpriced OC. p, the sample proportion of adults who say that some coffee shops are overpriced O D. x, the sample mean number of adults who say that some coffee shops are overpriced d. The 90% confidence interval for the parameter of interest is (.). (Round to two decimal places as needed.) newspapers 68% of adults O a telephone survey adults 68% of adults O 500 adults

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A newspaper reported that 68% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 500 adults.
a. Identify the population of interest in this study.
b. Identify the sample for the study.
7
c. Identify the parameter of interest in the study.
d. Find and interpret a 90% confidence interval for the parameter of interest.
O a telephone survey
O
newspapers
O coffee shops
c. Identify the parameter of interest. Choose the correct answer below.
OA. p, the population proportion of adults who say that some coffee shops are overpriced
OB. o2, the population variance of adults who say that some coffee shops are overpriced
OC. p, the sample proportion of adults who say that some coffee shops are overpriced
O D. x, the sample mean number of adults who say that some coffee shops are overpriced
d. The 90% confidence interval for the parameter of interest is ().
(Round to two decimal places as needed.)
Interpret this confidence interval. Choose the correct answer below.
0
O
O
adults
68% of adults
500 adults
O A. We are 90% confident that the parameter of interest lies in the confidence interval.
OB. We are confident that 90% of the population is outside the interval for the parameter of interest.
OC. There is a 90% chance that the value of the parameter of interest is outside the interval.
O D. We are confident that 90% of the population is described by the interval for the parameter of interest.
Transcribed Image Text:A newspaper reported that 68% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 500 adults. a. Identify the population of interest in this study. b. Identify the sample for the study. 7 c. Identify the parameter of interest in the study. d. Find and interpret a 90% confidence interval for the parameter of interest. O a telephone survey O newspapers O coffee shops c. Identify the parameter of interest. Choose the correct answer below. OA. p, the population proportion of adults who say that some coffee shops are overpriced OB. o2, the population variance of adults who say that some coffee shops are overpriced OC. p, the sample proportion of adults who say that some coffee shops are overpriced O D. x, the sample mean number of adults who say that some coffee shops are overpriced d. The 90% confidence interval for the parameter of interest is (). (Round to two decimal places as needed.) Interpret this confidence interval. Choose the correct answer below. 0 O O adults 68% of adults 500 adults O A. We are 90% confident that the parameter of interest lies in the confidence interval. OB. We are confident that 90% of the population is outside the interval for the parameter of interest. OC. There is a 90% chance that the value of the parameter of interest is outside the interval. O D. We are confident that 90% of the population is described by the interval for the parameter of interest.
A newspaper reported that 68% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 500 adults.
a. Identify the population of interest in this study.
b. Identify the sample for the study.
7
c. Identify the parameter of interest in the study.
d. Find and interpret a 90% confidence interval for the parameter of interest.
a. Identify the population of interest. Choose the correct answer below.
coffee shops
O adults
O 500 adults
b. Identify the sample. Choose the correct answer below.
O
a telephone survey
newspapers
coffee shops
O
c. Identify the parameter of interest. Choose the correct answer below.
OA. p, the population proportion of adults who say that some coffee shops are overpriced
OB. o2, the population variance of adults who say that some coffee shops are overpriced
OC. p, the sample proportion of adults who say that some coffee shops are overpriced
OD. x, the sample mean number of adults who say that some coffee shops are overpriced
d. The 90% confidence interval for the parameter of interest is (.).
(Round to two decimal places as needed.)
000
000
newspapers
68% of adults
a telephone survey
adults
68% of adults
O 500 adults
Transcribed Image Text:A newspaper reported that 68% of people say that some coffee shops are overpriced. The source of this information was a telephone survey of 500 adults. a. Identify the population of interest in this study. b. Identify the sample for the study. 7 c. Identify the parameter of interest in the study. d. Find and interpret a 90% confidence interval for the parameter of interest. a. Identify the population of interest. Choose the correct answer below. coffee shops O adults O 500 adults b. Identify the sample. Choose the correct answer below. O a telephone survey newspapers coffee shops O c. Identify the parameter of interest. Choose the correct answer below. OA. p, the population proportion of adults who say that some coffee shops are overpriced OB. o2, the population variance of adults who say that some coffee shops are overpriced OC. p, the sample proportion of adults who say that some coffee shops are overpriced OD. x, the sample mean number of adults who say that some coffee shops are overpriced d. The 90% confidence interval for the parameter of interest is (.). (Round to two decimal places as needed.) 000 000 newspapers 68% of adults a telephone survey adults 68% of adults O 500 adults
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