Listed in the data table are 1Q 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. Use a 0.01 significance level. E Click the icon to view the data table of IQ scores. O A. Ho H2 OB. Ho 2 OC. Ho: H S 2 O D. He -2 The test statistic is . (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion for the test. O A Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher l0 scores B. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores. OC. Fal to reject the nul hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores Click to select your answers).
Listed in the data table are 1Q 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. Use a 0.01 significance level. E Click the icon to view the data table of IQ scores. O A. Ho H2 OB. Ho 2 OC. Ho: H S 2 O D. He -2 The test statistic is . (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion for the test. O A Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher l0 scores B. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores. OC. Fal to reject the nul hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores Click to select your answers).
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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Transcribed Image Text: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. Use a
0.01 significance level.
E Click the icon to view the data table of IQ scores.
O A. Ho: H2
OB. Ho: HP2
H >2
OC. Ho: S 2
O D. Ho: -2
HP2
H: >2
The test statistic is
(Round to two decimal places as needed.)
The P-value is (Round to three decimal places as needed.)
State the conclusion for the test.
O A. Reject the null hypothesis. There is sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores.
O B. Reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores.
OC. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that subjects with medium lead levels have higher IQ scores.
Click to select your answer(s).
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Transcribed Image Text:Listed in the data table are 1Q 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
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
0.01 significance level.
E Click the icon to view the data table of lQ scores.
IQ Scores
O A. Ho: H1 = H2
H: Hq # H2
Medium Lead Level o High Lead Level
O C. Ho: H1 SH2
H: Hy> H2
72
n2 = 11
84
92
X2 = 88.634
85
The test statistic is
(Round to two decimal places as
S2 = 10.436
The P-value is
(Round to three decimal places as ne
92
105
111
91
State the conclusion for the test.
O A. Reject the null hypothesis. There is sufficient evid
O B. Reject the null hypothesis. There is not sufficient
Print
Done
O C. Fail to reject the null hypothesis. There is not suf
Click to select your answer(s).
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