Data 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. The statistics are summarized below. Use a 0.05 significance level to test the claim that the mean IQ score of people with low lead levels in their blood is higher than those with high lead levels in their blood. Let u represent a low lead level. Low lead Level : n=25 x= 91.90476 s= 9.988352 Higher Lead Level: n= 74 x= 89.89462 s= 12.34451 DETERMINE THE NULL AND ALT HYPOTHESES
Data 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. The statistics are summarized below. Use a 0.05 significance level to test the claim that the mean IQ score of people with low lead levels in their blood is higher than those with high lead levels in their blood. Let u represent a low lead level. Low lead Level : n=25 x= 91.90476 s= 9.988352 Higher Lead Level: n= 74 x= 89.89462 s= 12.34451 DETERMINE THE NULL AND ALT HYPOTHESES
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
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Data 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. The statistics are summarized below. Use a 0.05 significance level to test the claim that the
Low lead Level : n=25
x= 91.90476
s= 9.988352
Higher Lead Level: n= 74
x= 89.89462
s= 12.34451
DETERMINE THE NULL AND ALT HYPOTHESES
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