97. Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. It randomly surveys 100 people. The sample mean is 23.6 hours. There is a known standard deviation of 7.0 hours. The population distribution is assumed to be normal. i. x = ii. o iii. n = a. b. In words, define the random variables X and X. c. Which distribution should you use for this problem? Explain your choice. d. Construct a 90% confidence interval for the population mean time to complete the tax forms. i. State the confidence interval. ii. Sketch the graph. iii. Calculate the error bound.
97. Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. It randomly surveys 100 people. The sample mean is 23.6 hours. There is a known standard deviation of 7.0 hours. The population distribution is assumed to be normal. i. x = ii. o iii. n = a. b. In words, define the random variables X and X. c. Which distribution should you use for this problem? Explain your choice. d. Construct a 90% confidence interval for the population mean time to complete the tax forms. i. State the confidence interval. ii. Sketch the graph. iii. Calculate the error bound.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please please include the four steps in a Cl write-up
1. Assumptions
2. Title
3. Construction of Cl
4. Interpretation
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