In a random sample of seven people, the mean driving distance to work was 20.2 miles and the standard deviation was 4.6 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 90% confidence interval for the population mean μ. Interpret the results. Identify the margin of error. 3.4 miles (Round to one decimal place as needed.) Construct a 90% confidence interval for the population mean. (Round to one decimal place as needed.)
In a random sample of seven people, the mean driving distance to work was 20.2 miles and the standard deviation was 4.6 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 90% confidence interval for the population mean μ. Interpret the results. Identify the margin of error. 3.4 miles (Round to one decimal place as needed.) Construct a 90% confidence interval for the population mean. (Round to one decimal place as needed.)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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