From a large number of actuarial exam scores, a random sample of 200 scores is selected, and it is found that 148 of these 200 are passing scores. Based on this sample, find a 90% confidence interval for the proportion of all scores that are passing. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?
From a large number of actuarial exam scores, a random sample of 200 scores is selected, and it is found that 148 of these 200 are passing scores. Based on this sample, find a 90% confidence interval for the proportion of all scores that are passing. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?
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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Question
From a large number of actuarial exam scores, a random sample of
scores is selected, and it is found that
of these
are passing scores. Based on this sample, find a
confidence interval for the proportion of all scores that are passing. Then complete the table below.
200
148
200
90%
Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.
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