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MATLAB: An Introduction with Applications

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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Give a 98% confidence interval, for μ₁
T₁ = 2.62, 8₁ = 0.71, n₁ = 35
T₂ = 2.7, 82 = 0.88, n₂ = 33
₂ given the following information.
X-0.08
-123
Use technology and remember you should NOT pool the standard deviations.
Xo 0.46 or 0.48 Rounded to 2 decimal places.
X
Which of the following does your data suggest?
That you lose more weight on the new routine.
That you lose more weight on the current routine.
You lose about the same weight on both routines.

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1.3 answer in 2 decimal places No need solutions
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Step 6 We found xo.025 = 32.852 and x6.975 = 8.907. Recall the sample standard deviation s = 4, and sample size n = 20. Substitute these values to first find the lower bound for the confidence interval of the population variance, rounding the result to two decimal places. (n – 1)s? lower bound = (20 – 1)42 Now substitute these values to find the upper bound for the confidence interval of the population variance, rounding the result to two decimal places. (n – 1)s? upper bound = X1- a/2 (20 - 1)42

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