A poll in 2017 reported that 699 out of 1027 adults in a certain country believe that marijuana should be legalized. When this poll about the same subject was first conducted in 1969, only 12% of the adults of the country support conditions for using the CLT are met Complete parts (a) through (d) below. B. We are % confident that every sample proportion of adults who believe marijuana should be legalized is between and OC. There is a % chance that the population proportion of adults who believe marijuana should be legalized is between and OD. There is a % chance that the sample proportion of adults who believe marijuana should be legalized is between and c. Find the margin of error for each of the confidence intervals found in parts (a) and (b). The margin of error of the 99% confidence interval is 0.039 and the margin of error of the 90% confidence interval is 0.025 (Round to three hal places as needed.) d. Without computing it, how would the margin of error of an 80% confidence interval compare with the margin of error for the 90% and 99% intervals? Construct the 80% confidence interval to see if your prediction was correct. How would a 80% interval compare with the others in the margin of error? A. The margin of error of an 80% confidence interval will be more than the margin of error for the 90% and 99% confidence intervals because intervals get wider with increasing confidence level. B. The margin of error of an 80% confidence interval will be less than the margin of error for the 90% and 99% confidence intervals because intervals get wider with increasing confidence level. O C. The margin of error of an 80% confidence interval will be greater than the margin of error for the 90% confidence interval and less than the margin of error for the 99% confidence interval because intervals get wider with increasi The 000
A poll in 2017 reported that 699 out of 1027 adults in a certain country believe that marijuana should be legalized. When this poll about the same subject was first conducted in 1969, only 12% of the adults of the country support conditions for using the CLT are met Complete parts (a) through (d) below. B. We are % confident that every sample proportion of adults who believe marijuana should be legalized is between and OC. There is a % chance that the population proportion of adults who believe marijuana should be legalized is between and OD. There is a % chance that the sample proportion of adults who believe marijuana should be legalized is between and c. Find the margin of error for each of the confidence intervals found in parts (a) and (b). The margin of error of the 99% confidence interval is 0.039 and the margin of error of the 90% confidence interval is 0.025 (Round to three hal places as needed.) d. Without computing it, how would the margin of error of an 80% confidence interval compare with the margin of error for the 90% and 99% intervals? Construct the 80% confidence interval to see if your prediction was correct. How would a 80% interval compare with the others in the margin of error? A. The margin of error of an 80% confidence interval will be more than the margin of error for the 90% and 99% confidence intervals because intervals get wider with increasing confidence level. B. The margin of error of an 80% confidence interval will be less than the margin of error for the 90% and 99% confidence intervals because intervals get wider with increasing confidence level. O C. The margin of error of an 80% confidence interval will be greater than the margin of error for the 90% confidence interval and less than the margin of error for the 99% confidence interval because intervals get wider with increasi The 000
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter7: Percents
Section7.5: Percent Of Change
Problem 1E
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Transcribed Image Text:A poll in 2017 reported that 699 out of 1027 adults in a certain country believe that marijuana should be legalized. When this poll about the same subject was first conducted in 1969, only 12% of the adults of the country support
conditions for using the CLT are met Complete parts (a) through (d) below.
B. We are
% confident that every sample proportion of adults who believe marijuana should be legalized is between
and
OC. There is a
% chance that the population proportion of adults who believe marijuana should be legalized is between
and
OD. There is a
% chance that the sample proportion of adults who believe marijuana should be legalized is between
and
c. Find the margin of error for each of the confidence intervals found in parts (a) and (b).
The margin of error of the 99% confidence interval is 0.039 and the margin of error of the 90% confidence interval is 0.025
(Round to three
hal places as needed.)
d. Without computing it, how would the margin of error of an 80% confidence interval compare with the margin of error for the 90% and 99% intervals? Construct the 80% confidence interval to see if your prediction was correct.
How would a 80% interval compare with the others in the margin of error?
A. The margin of error of an 80% confidence interval will be more than the margin of error for the 90% and 99% confidence intervals because intervals get wider with increasing confidence level.
B. The margin of error of an 80% confidence interval will be less than the margin of error for the 90% and 99% confidence intervals because intervals get wider with increasing confidence level.
O C. The margin of error of an 80% confidence interval will be greater than the margin of error for the 90% confidence interval and less than the margin of error for the 99% confidence interval because intervals get wider with increasi
The
000
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