ne following results are for independent Fahdom samples taken Sample 1 Sample 2 - 20 n- 30 x - 22.7 x2- 20.1 $-2.9 $24.6 (0) What is the point estimate of the difference between the two population means? (Use x; - 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 x, - x. Round your answers to one decimal place.) to
ne following results are for independent Fahdom samples taken Sample 1 Sample 2 - 20 n- 30 x - 22.7 x2- 20.1 $-2.9 $24.6 (0) What is the point estimate of the difference between the two population means? (Use x; - 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 x, - x. Round your answers to one decimal place.) to
MATLAB: An Introduction with Applications
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Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:The following results are for independent random samples taken from two populations.
Sample 1
Sample 2
= 20
n2- 30
X - 22.7
X2 = 20.1
$= 2.9
$2 = 4.6
(a) What is the point estimate of the difference between the two population means? (Use x, - x.)
(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 x, - X3. Round your answers to one
decimal place.)
to
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