Suppose a Reading Comprehension Test Is Given to Random Samples

question 48

Short Answer

Suppose a reading comprehension test is given to random samples of three seventh graders from each of five different schools. The samples are chosen so that each school provides a student categorized as low IQ, average IQ, and high IQ. Perform an analysis using the data below treating the IQs as blocks. Is there sufficient evidence to reject the null hypothesis of no difference between the true mean test scores of the five schools? Draw conclusions using = 0.05.
What is the F-statistic?
______________
Reject Region: Reject H₀ if |F| > ______________
Can you reject the null hypothesis? Use = 0.05.
______________
One ______________ conclude that there is a significant difference between the true mean test scores of the five schools.

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