Some behavioral problems seem to be associated with the presence of lead in a ch

Question

Some behavioral problems seem to be associated with the presence of lead in a child's blood. Researchers wondered whether the amount of lead in a child's blood can be used to predict their score on an assessment of behavioral problems. Scores on the assessment range from 0 to 100, with higher scores indicating more behavioral problems. Which of the following hypothesis tests would be best for answering this question? Paired data test Independent samples test ANOVA Test of two proportions Chi-squared test of independence Hypothesis test for regression

Explanation / Answer

1.

It is best answered by Chi-squared test of independence.

2.

here we will have paired data for 50 subjects. So Paired data test will be appropriate.

3.

There will be two independent samples: one correspondong to each therapy. So Independent samples test will be used.

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