Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. what are the null and alternative nypotneses Assume that population 1 consists or subjects with medium lead levers and population consists of subjects with nign lead ievers. A. Ho: y = 1₂ H₁: Hy #H₂ OC. Ho: #₁ #₂ H₁: Hy > H₂ The test statistic is 0.11. (Round to two decimal places as needed.) The P-value is 0.457. (Round to three decimal places as needed.) State the conclusion for the test. B. Ho: 5₂ H₁: Hy > H₂ (Round to two decimal places as needed.) D. Ho: H₁ H₂ H₁: Hy > H₂ OA. Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels ha B. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead lev C. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead lever D. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead level IQ Scores Medium Lead Level High Lead Level 72 n₂ = 11 97 92 x2 = 91.088 85 87 $2= 10.092 97 83 92 100 111 91 Print Done
Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. what are the null and alternative nypotneses Assume that population 1 consists or subjects with medium lead levers and population consists of subjects with nign lead ievers. A. Ho: y = 1₂ H₁: Hy #H₂ OC. Ho: #₁ #₂ H₁: Hy > H₂ The test statistic is 0.11. (Round to two decimal places as needed.) The P-value is 0.457. (Round to three decimal places as needed.) State the conclusion for the test. B. Ho: 5₂ H₁: Hy > H₂ (Round to two decimal places as needed.) D. Ho: H₁ H₂ H₁: Hy > H₂ OA. Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels ha B. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead lev C. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead lever D. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead level IQ Scores Medium Lead Level High Lead Level 72 n₂ = 11 97 92 x2 = 91.088 85 87 $2= 10.092 97 83 92 100 111 91 Print Done
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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Question
![2
Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects
with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations
are equal. Complete parts (a) and (b) below.
Click the icon to view the data table of IQ scores.
F2
W
vnat are the null and alternative nypotneses Assume that population 1 consists or subjects with medium lead levers and population consists of subjects with nign lead levels.
OA H₂: H₁ = 1/₂
OB. Ho: ₁5₂
H₁: Hy > H₂
H₁ H₁ H₂
S
OC. Ho: Hy #4¹₂
H₁: Hy > H₂
elp me solve this
The test statistic is 0.11. (Round to two decimal places as needed.)
The P-value is 0.457. (Round to three decimal places as needed.)
State the conclusion for the test.
OA. Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels ha
B. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead le
C. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead lever
D. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead
b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead level
<H₁ -1
(Round to two decimal places as needed.)
X
mmand
#
3
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D. Ho: H = ₂
H₁: HH₂
DII
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IQ Scores
O
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.
Medium Lead Level High Lead Level
72
n₂ = 11
97
92
x₂ = 91.088
85
87
97
Clear all
:
;
I
83
92
100
111
91
Print
F11
{
option
[
+
=
?
1
$210.092
I
Done
Check answer
F12
}
]
delete
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Transcribed Image Text:2
Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects
with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations
are equal. Complete parts (a) and (b) below.
Click the icon to view the data table of IQ scores.
F2
W
vnat are the null and alternative nypotneses Assume that population 1 consists or subjects with medium lead levers and population consists of subjects with nign lead levels.
OA H₂: H₁ = 1/₂
OB. Ho: ₁5₂
H₁: Hy > H₂
H₁ H₁ H₂
S
OC. Ho: Hy #4¹₂
H₁: Hy > H₂
elp me solve this
The test statistic is 0.11. (Round to two decimal places as needed.)
The P-value is 0.457. (Round to three decimal places as needed.)
State the conclusion for the test.
OA. Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels ha
B. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead le
C. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead lever
D. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead
b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead level
<H₁ -1
(Round to two decimal places as needed.)
X
mmand
#
3
Get more help.
80
F3
E
D
C
$
4
a
F4
R
F
%
21 2
5
V
I
FS
T
G
A
6
MacBook Air
B
F6
Y
H
&
7
8
F7
U
N
*
8
J
D. Ho: H = ₂
H₁: HH₂
DII
FB
I
M
(
9
K
F9
O
<
I
IQ Scores
O
L
4
F10
command
P
>
.
Medium Lead Level High Lead Level
72
n₂ = 11
97
92
x₂ = 91.088
85
87
97
Clear all
:
;
I
83
92
100
111
91
Print
F11
{
option
[
+
=
?
1
$210.092
I
Done
Check answer
F12
}
]
delete
L
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