Appendix B lists full 1Q scores for a random sample of subjects wiIth lead levels in their blood and another random sample of subjects with high lead levels in their blood. Round to one decimal place for your calculations. Low Blood Lead Level: n = 78, x = 92.9, s = 15.3 High Blood Lead Level: n = 21, x = 86.9, s = 9.0 | A. Create a 95% confidence interval estimate on the difference between the Low and High blood lead levels. Assume blood lead levels are normally distributed and of # o3. C.I. = В. From the Cl in part A, can it be concluded that there is a significant difference between the Low and High blood lead levels? How did you make this determination? c. Calculate the pooled standard deviation for this
Appendix B lists full 1Q scores for a random sample of subjects wiIth lead levels in their blood and another random sample of subjects with high lead levels in their blood. Round to one decimal place for your calculations. Low Blood Lead Level: n = 78, x = 92.9, s = 15.3 High Blood Lead Level: n = 21, x = 86.9, s = 9.0 | A. Create a 95% confidence interval estimate on the difference between the Low and High blood lead levels. Assume blood lead levels are normally distributed and of # o3. C.I. = В. From the Cl in part A, can it be concluded that there is a significant difference between the Low and High blood lead levels? How did you make this determination? c. Calculate the pooled standard deviation for this
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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![Data Set 7 “IQ and Lead" in Appendix B lists full IQ scores for a random sample of subjects with low
lead levels in their blood and another random sample of subjects with high lead levels in their blood.
Round to one decimal place for your calculations.
Low Blood Lead Level: n = 78, ī = 92.9, s = 15.3
High Blood Lead Level: n = 21, x = 86.9, s = 9.0
А.
Create a 95% confidence interval estimate on the difference between the Low and High blood
lead levels. Assume blood lead levels are normally distributed and of # ož.
C.I. = (
From the Cl in part A, can it be concluded that there is a significant difference between the Low
and High blood lead levels? How did you make this determination?
С.
Calculate the pooled standard deviation for this
B.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F37d178fa-2337-41de-8b75-50de03e5c6d9%2F7d10d286-cb16-4a18-b1e0-7f7558fc6c2a%2Fsul5ts_processed.png&w=3840&q=75)
Transcribed Image Text:Data Set 7 “IQ and Lead" in Appendix B lists full IQ scores for a random sample of subjects with low
lead levels in their blood and another random sample of subjects with high lead levels in their blood.
Round to one decimal place for your calculations.
Low Blood Lead Level: n = 78, ī = 92.9, s = 15.3
High Blood Lead Level: n = 21, x = 86.9, s = 9.0
А.
Create a 95% confidence interval estimate on the difference between the Low and High blood
lead levels. Assume blood lead levels are normally distributed and of # ož.
C.I. = (
From the Cl in part A, can it be concluded that there is a significant difference between the Low
and High blood lead levels? How did you make this determination?
С.
Calculate the pooled standard deviation for this
B.
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