A random sample of 17 trout are selected from Wheatland Reservoir #3 are found tohave a mean length of 16.4 inches with a standard deviation of 2.5 inches. A similarsample of size 14 is selected from Twin Buttes Reservoir with a mean length of 13.5inches and a standard deviation of 2.1 inches. Assume both populations of trout havelengths which are nomally distributed.a. Construct a 90% confidence interval for the difference between the true meanlengths for these populations. What does this interval tell you?b. Construct a 90% confidence interval for the ratio of the population variances.What does this interval tell you? Discuss how the answer to part “b* could changeyour answer to part "a".

A random sample of 17 trout are selected from Wheatland Reservoir #3 are found to have a mean length of 16.4 inches with a standard deviation of 2.5 inches. A similar sample of size 14 is selected from Twin Buttes Reservoir with a mean length of 13.5 inches and a standard deviation of 2.1 inches. Assume both populations of trout have lengths which are normally distributed. a. Construct a 90% confidence interval for the difference between the true mean lengths for these populations. What does this interval tell you? b. Construct a 90% confidence interval for the ratio of the population variances. What does this interval tell you? Discuss how the answer to part “b* could change your answer to part "a".

A random sample of 17 trout are selected from Wheatland Reservoir #3 are found to have a mean length of 16.4 inches with a standard deviation of 2.5 inches. A similar sample of size 14 is selected from Twin Buttes Reservoir with a mean length of 13.5 inches and a standard deviation of 2.1 inches. Assume both populations of trout have lengths which are normally distributed. a. Construct a 90% confidence interval for the difference between the true mean lengths for these populations. What does this interval tell you? b. Construct a 90% confidence interval for the ratio of the population variances. What does this interval tell you? Discuss how the answer to part “b* could change your answer to part "a".

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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