A sample of 15 students was used to estimate the performance of graduates of a certain college on a standardized test taken by all the students of the college. It was found that the sample average score of these 15 students on the test was 85 with a sample standard deviation of 15. What would be the 95% confidence interval for the average score of the whole college population? If instead, it is known that this sample of 15 students was taken only from a specific section of a class containing 30 students, what would be the

A sample of 15 students was used to estimate the performance of graduates of a certain college on a standardized test taken by all the students of the college. It was found that the sample average score of these 15 students on the test was 85 with a sample standard deviation of 15. What would be the 95% confidence interval for the average score of the whole college population? If instead, it is known that this sample of 15 students was taken only from a specific section of a class containing 30 students, what would be the

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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