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A recent market study produced the following data on education level by gender:
Education Level Male Female TOTAL
Up to High School 250 350 600
College or U Grad 460 540 1000
Postgraduate 65 85 150
TOTAL 775 975 1750
We want to determine if education level is independent of gender.
1. State the null and alternative hypotheses for a contingency table test if we want to determine if education level is independent of gender?
2. State the rejection rule for the critical value approach. Let alpha = 0.01?
3. Calculate the expected frequency for the cell "Postgraduate" and "Female" ?
4. If the Chi Square statistic is 2.914 what is your conclusion?
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The cars that ECI sells come from multiple sources: some are shipped directly from the factories, other purchased from the private collectors, and yet some other cars are traded-in by the customers of ECI.
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If cohesion is the guiding principle driving developers to decompose a system into small parts, which competing principle drives them to keep the total number of parts small?
In the article "Eradication of Small Intestinal Bacterial Overgrowth Reduces Symptoms of Irritable Bowel Syndrome" (by Pimentel, Chow, Lin, American Journal
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