K 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 nus and atemave mypotheses/Assume that population consists or subjects with medium lead evers and population consists of subjects with high lead reves. CA 1R*P 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 H₂: #y # OA Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores OB Fail to reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores OC Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores Fall to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium leal levels have higher IQ scores b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels (Round to two decimal places as needed)

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7
7
CP
2
W
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H
and
K
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 nu and a
OA M₂: Hy #₂
H₂: Hy #H₂
Help me solve this
OC. M₂: Hy #4₂
H₂: Hy P₂
The test statistic is 0.1
The P-value is 0.457.
State the conclusion for
OA Reject the null h
OB. Fail to reject the
OC. Reject the null
D. Fail to reject the
3
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D
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Get more help.
$
4
b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels.
044-₂0
(Round to two decimal places as needed.)
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IQ Scores
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n₂ = 11
97
92
85
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87
97
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111
91
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X₂ = 91.088
$2 = 10.092
7
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Transcribed Image Text:-tip 7 7 CP 2 W S x H and K 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 nu and a OA M₂: Hy #₂ H₂: Hy #H₂ Help me solve this OC. M₂: Hy #4₂ H₂: Hy P₂ The test statistic is 0.1 The P-value is 0.457. State the conclusion for OA Reject the null h OB. Fail to reject the OC. Reject the null D. Fail to reject the 3 E D SO с Get more help. $ 4 b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. 044-₂0 (Round to two decimal places as needed.) R F 9 IQ Scores FA V 36 5 T G Medium Lead Level High Lead Level 72 n₂ = 11 97 92 85 B 87 97 83 92 6 100 111 91 Print € MacBook Air Y H X₂ = 91.088 $2 = 10.092 7 Done N -80 U J 8 M 1 DII K ( 9 H - X I De O igher IQ scores. have higher IQ scores. ve higher IQ scores. els have higher IQ scores. ation consists of subjects with nign lead levels. L command > O F10 P z ; option Clear all { r ? / + Final check F12 } 1 delete return shift drew
tip
B
d
S
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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.
W
I
what are the null and alternative nypotheses/Assume that population 1 consists or subjects with medium lead levels and population consists or subjects with nign lead revers.
OA M₂: # *#₂2
H₂: Hy #4₂
OC. M₂: # *#₂
H₂₂
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.
Help me solve this
(Round to two decimal places as needed.)
OA Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores.
OB. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores.
OC. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores.
D. Fall to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores.
b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels.
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Transcribed Image Text:tip B d S K 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. W I what are the null and alternative nypotheses/Assume that population 1 consists or subjects with medium lead levels and population consists or subjects with nign lead revers. OA M₂: # *#₂2 H₂: Hy #4₂ OC. M₂: # *#₂ H₂₂ 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. Help me solve this (Round to two decimal places as needed.) OA Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores. OB. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores. OC. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores. D. Fall to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores. b. Construct a confidence interval suitable for testing the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. 6 E D BAC с с / Get more help - 7 " R TEL F V T G MacBook Air 8 TIL S IL H B N U OB. Ho: 5₂2 H₂H4₂ J D. H₂: P1 P₂ H₂:4₂ M 9 L K H ' O L command O HE { r - P t = Clear all option ? } Final check 1 delete return shift drew
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