(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.) -33.6 X to 39.2 x 57°F Clear Need Help? Submit Answer Read It Watch It Master It
(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.) -33.6 X to 39.2 x 57°F Clear Need Help? Submit Answer Read It Watch It Master It
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
Part d please
![esc
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
n1 = 20
X1
= 22.9
57°F
Clear
Sample 2
n2 = 30
$1 = 2.5
(a) What is the point estimate of the difference between the two population means? (Use x₁ - x₂.)
2.8
Need Help?
X2
(b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.)
45
Submit Answer
(c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.)
2.093602103
2
S₂ = 4.8
= 20.1
(d) What is the 95% confidence interval for the difference between the two population means? (Use x.
-33.6
X to 39.2
x
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Transcribed Image Text:esc
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
n1 = 20
X1
= 22.9
57°F
Clear
Sample 2
n2 = 30
$1 = 2.5
(a) What is the point estimate of the difference between the two population means? (Use x₁ - x₂.)
2.8
Need Help?
X2
(b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.)
45
Submit Answer
(c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.)
2.093602103
2
S₂ = 4.8
= 20.1
(d) What is the 95% confidence interval for the difference between the two population means? (Use x.
-33.6
X to 39.2
x
Read It
#
3
Watch It
f4
$
4
Master It
f5
40
%
5
9
1
6
f7
4+
4
&
6
10
fg
7
A
IAA
*
4
4
6
N
*
4
4
4
C4
10 *
44
4464
d A
19
hp
*2"
4
8
DII
4
Round your answers to one decimal place.)
F10
****
4 5
Re A
901
S
A 44
DDI
*
94
44
4
***
S 444**
f11
C
A
S
CEE
CE***
f12
insert
C
4
**
C
t
A
prt sc
No
delete
backspace
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