Thirty-six items are randomly selected from a population of 280 items. The sample mean is 35, and the sample standard deviation 8. Develop a 80% confidence interval for the population mean. (Round the t-value to 3 decimal places. Round the final answers to 2 decimal places.) The confidence interval is between__and__. Please help me with this question. Thanks!
Thirty-six items are randomly selected from a population of 280 items. The sample mean is 35, and the sample standard deviation 8. Develop a 80% confidence interval for the population mean. (Round the t-value to 3 decimal places. Round the final answers to 2 decimal places.) The confidence interval is between__and__. Please help me with this question. Thanks!
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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Transcribed Image Text:Thirty-six items are randomly selected from
a population of 280 items. The sample
mean is 35, and the sample standard
deviation 8. Develop a 80% confidence
interval for the population mean. (Round the
t-value to 3 decimal places. Round the final
answers to 2 decimal places.)
The confidence interval is
between___and___.
Please help me with this question.
Thanks!
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