a. Two samples are taken with the following numbers of successes and sample sizes r1r1 = 38 r2r2 = 29 n1n1 = 57 n2n2 = 83 Find a 91% confidence interval, round answers to the nearest thousandth. < p1−p2< B. A random sample of n1n1 = 208 people who live in a city were selected and 100 identified as a "dog person." A random sample of n2n2 = 106 people who live in a rural area were selected and 52 identified as a "dog person." Find the 98% confidence interval for the difference in the proportion of people that live in a city who identify as a "dog person" and the proportion of people that live in a rural area who identify as a "dog person." Round answers to to 4 decimal places. < p1−p2 < c. If the confidence interval for the difference in population proportions p1−p2 includes 0, then this suggests which of the following? The first population proportion is less than the second. The two population proportions might be the same.. No comparison can be made between the two population proportions. The first population proportion is greater than the second.
a. Two samples are taken with the following numbers of successes and sample sizes r1r1 = 38 r2r2 = 29 n1n1 = 57 n2n2 = 83 Find a 91% confidence interval, round answers to the nearest thousandth. < p1−p2< B. A random sample of n1n1 = 208 people who live in a city were selected and 100 identified as a "dog person." A random sample of n2n2 = 106 people who live in a rural area were selected and 52 identified as a "dog person." Find the 98% confidence interval for the difference in the proportion of people that live in a city who identify as a "dog person" and the proportion of people that live in a rural area who identify as a "dog person." Round answers to to 4 decimal places. < p1−p2 < c. If the confidence interval for the difference in population proportions p1−p2 includes 0, then this suggests which of the following? The first population proportion is less than the second. The two population proportions might be the same.. No comparison can be made between the two population proportions. The first population proportion is greater than the second.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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a. Two samples are taken with the following numbers of successes and sample sizes
r1r1 = 38 r2r2 = 29
n1n1 = 57 n2n2 = 83
Find a 91% confidence interval, round answers to the nearest thousandth.
< p1−p2<
B. A random sample of n1n1 = 208 people who live in a city were selected and 100 identified as a "dog person." A random sample of n2n2 = 106 people who live in a rural area were selected and 52 identified as a "dog person." Find the 98% confidence interval for the difference in the proportion of people that live in a city who identify as a "dog person" and the proportion of people that live in a rural area who identify as a "dog person."
Round answers to to 4 decimal places.
< p1−p2 <
c. If the confidence interval for the difference in population proportions p1−p2 includes 0, then this suggests which of the following?
- The first population proportion is less than the second.
- The two population proportions might be the same..
- No comparison can be made between the two population proportions.
- The first population proportion is greater than the second.
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