You may need to use the appropriate appendix table or technology to answer this question.The following results are for independent random samples taken from two populations.Sample 1Sample 2n1 = 20n2 = 30x1 = 22.9x2 = 20.1s1 = 2.6s2 = 4.6(a)What is the point estimate of the difference between the two population means? (Use x1 − x2.) (b)What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.) (c)At 95% confidence, what is the margin of error? (Round your answer to one decimal place.) (d)What is the 95% confidence interval for the difference between the two population means? (Use x1 − x2. Round your answers to one decimal place.) to

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Description: You may need to use the appropriate appendix table or technology to answer this question.The following results are for independent random samples taken from two populations.Sample 1Sample 2n1 = 20n2 = 30x1 = 22.9x2 = 20.1s1 = 2.6s2 = 4.6(a)What is th

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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You may need to use the appropriate appendix table or technology to answer this question.

The following results are for independent random samples taken from two populations.

Sample 1	Sample 2
n₁ = 20	n₂ = 30
x₁ = 22.9	x₂ = 20.1
s₁ = 2.6	s₂ = 4.6

(a)

What is the point estimate of the difference between the two population means? (Use

x₁ − x₂.

)

(b)

What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.)

(c)

At 95% confidence, what is the margin of error? (Round your answer to one decimal place.)

(d)

What is the 95% confidence interval for the difference between the two population means? (Use

x₁ − x₂.

Round your answers to one decimal place.)

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