IQ scores for three different blood lead levels was measured. If we use three categories of blood levels with measured verbal IQ scores, we get the computer output which is summarized in table Using a 0.05 significance test, test the claim that the three categories of blood lead level have th mean verbal IQ score. Does exposure to lead appear to have an effect on verbal IQ scores? Inter table below.

MATLAB: An Introduction with Applications
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IQ scores for three different blood lead levels was measured. If we use three categories of blood lead
levels with measured verbal IQ scores, we get the computer output which is summarized in table form.
Using a 0.05 significance test, test the claim that the three categories of blood lead level have the same
mean verbal IQ score. Does exposure to lead appear to have an effect on verbal IQ scores? Interpret the
table below.
Source of variation
df
Sum of squares
Mean squares
Computed f
p-value
LEAD
2
142
71
0.39
0.677
Error
118
21441
182
Total
120
21584
Transcribed Image Text:IQ scores for three different blood lead levels was measured. If we use three categories of blood lead levels with measured verbal IQ scores, we get the computer output which is summarized in table form. Using a 0.05 significance test, test the claim that the three categories of blood lead level have the same mean verbal IQ score. Does exposure to lead appear to have an effect on verbal IQ scores? Interpret the table below. Source of variation df Sum of squares Mean squares Computed f p-value LEAD 2 142 71 0.39 0.677 Error 118 21441 182 Total 120 21584
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