Assignment Problems

# Assignment Problems - Assignment Problems ANOVA- Analysis...

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Assignment Problems ANOVA- Analysis of Variance Used to study the difference in the mean of the various variables. 1. A study compared the number of hours of relief provided by five different brands of antacid administered to 25 different people, each with stomach acid considered strong. The results are given below; Brand A B C D E 4.4 5.8 4.8 2.9 4.6 4.6 5.2 5.9 2.7 4.3 4.5 4.9 4.9 2.9 3.8 4.1 4.7 4.6 3.9 5.2 3.8 4.6 4.3 4.3 4.4 At 0.05 level of significance, do the brands produce significantly different amounts of relief to people with strong stomach acid? State your null and alternative hypothesis clearly. 2. An investor is interested in seeing whether there are significant differences in the rates of returns on stocks, bonds, and mutual funds. He has taken random samples of each type of investment and has recorded the following data Rate of Return Stocks 2.0 6.0 2.0 2.1 6.2 2.9 Bonds 4.0 3.1 2.2 5.3 5.9 Mutual Funds 3.5 3.1 2.9 6.0 State null and alternative hypothesis and test them at a 0.05 level of significance. Regression/Correlation 3. Sales of major appliances vary with the new housing market: when new home sales are good, so are the sales of dishwashers, washing machines, driers, and refrigerators. A trade association complied the following historical data (in thousands of units) on major appliances sales and housing starts: Housing Starts (Thousands) Appliances Sales (Thousands) 2.0 5.0 2.5 5.5 3.2 6.0 3.6 7.0 3.3 7.2

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4.0 7.7 4.2 8.4 4.6 9.0 4.8 9.7 5.0 10.0 a) Develop an equation for the relationship between appliances sales (in thousand) and housing starts (in thousands). b)
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## This note was uploaded on 12/07/2011 for the course MBA 0001 taught by Professor Akshat during the Spring '09 term at Institute of Management Technology.

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Assignment Problems - Assignment Problems ANOVA- Analysis...

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