tab 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. A (a) What is the point estimate of the difference between the two population means? (Use x₁ - x₂.) 2.8 ✓ esc F 57°F Clear →1 (b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.) 45 ✓ Sample 1 n₁ = 20 X₁ = 22.9 x₂ = 20.1 s, = 2.5 (c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.) 2.093602103 ✓ (d) What is the 95% confidence interval for the difference between the two population means? (Use x. - x₂. Round your answers to one decimal place.) -33.6 X to 39.2 x Need Help? 1 1 Sample 2 n₂ = 30 ? Q $₂4.8 @ 2 * Read I W w* | # Watch t 3 E B $ Master it 4 ts R do 55 % 16 ¹4- T O ^ 6 4+ Y & 7 144 * U 8 hp DE 1 DDI 9 O O P { prt sc C G t ] home 7 home 694 8 ↑ 8:35 PM 4 10/9/2022 * og on 9
tab 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. A (a) What is the point estimate of the difference between the two population means? (Use x₁ - x₂.) 2.8 ✓ esc F 57°F Clear →1 (b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.) 45 ✓ Sample 1 n₁ = 20 X₁ = 22.9 x₂ = 20.1 s, = 2.5 (c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.) 2.093602103 ✓ (d) What is the 95% confidence interval for the difference between the two population means? (Use x. - x₂. Round your answers to one decimal place.) -33.6 X to 39.2 x Need Help? 1 1 Sample 2 n₂ = 30 ? Q $₂4.8 @ 2 * Read I W w* | # Watch t 3 E B $ Master it 4 ts R do 55 % 16 ¹4- T O ^ 6 4+ Y & 7 144 * U 8 hp DE 1 DDI 9 O O P { prt sc C G t ] home 7 home 694 8 ↑ 8:35 PM 4 10/9/2022 * og on 9
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
Related questions
Question
Part d please
![tab
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.
esc
K
57°F
Clear
不
-1
Sample 1
n₁ = 20
71
$1 = 2.5
(a) What is the point estimate of the difference between the two population means? (Use x₁ - x₂.)
2.8
X1
1
f1
= 22.9
(b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.)
45
Need Help?
(c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.)
2.093602103
(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.)
X to 39.2
-33.6
x
?
Sample 2
Q
7₂ = 30
x₂ = 20.1
$2
f2
2
= 4.8
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*
#
3
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$
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4
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R
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5
f6
T
6
17
Y
&
7
fg
144
U
f9
8
hp
DII
f10
DDI
O
hz.
insert
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prt sc
LJ
[
4.
delete
backspace
home
num
lock
end
home
8:35 PM
10/9/2022
pg up
004
▶
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pg up](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9fa7da45-a622-4649-ba74-012a4172a9ec%2Fc7b2e86e-5552-4c72-bd2a-0ade294b9bca%2Fj87drpe_processed.jpeg&w=3840&q=75)
Transcribed Image Text:tab
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.
esc
K
57°F
Clear
不
-1
Sample 1
n₁ = 20
71
$1 = 2.5
(a) What is the point estimate of the difference between the two population means? (Use x₁ - x₂.)
2.8
X1
1
f1
= 22.9
(b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.)
45
Need Help?
(c) At 95% confidence, what is the margin of error? (Round your answer to one decimal place.)
2.093602103
(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.)
X to 39.2
-33.6
x
?
Sample 2
Q
7₂ = 30
x₂ = 20.1
$2
f2
2
= 4.8
Read It
W
f3
Watch It
*
#
3
E
$
Master It
4
f5
R
%
5
f6
T
6
17
Y
&
7
fg
144
U
f9
8
hp
DII
f10
DDI
O
hz.
insert
P
prt sc
LJ
[
4.
delete
backspace
home
num
lock
end
home
8:35 PM
10/9/2022
pg up
004
▶
pg dn
pg up
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