Reference no: EM13995388
1. Given the information in Exercise 15.13, deter- mine and interpret the coefficients of correlation and determination for January-May burned acreage in Florida versus January-May rainfall in the state.
2. Given the information in Exercise 15.12, determine and interpret the coefficients of correlation and determina- tion for gross revenue versus the number of equity partners.
3. For each of 10 popular prescription drugs, file XR15042 lists the retail price (in U.S. dollars) for the drug in several different countries, including the United States, Canada, Great Britain, and Australia. Determine and interpret the coefficients of correlation and deter- mination for U.S. prices versus Canadian prices. Source: "Prescription Drugs Cheaper in Other Nations," USA Today, November 10, 1999, p. 2A.
4. For each of the 20 top-grossing U.S. films made during the 1990s, file XR15043 lists the domestic gross ticket sales versus foreign gross ticket sales (both in millions of U.S. dollars). Determine the linear regression equation relating the foreign gross as a function of the domestic gross. Identify and interpret the coefficients of correlation and determination. Source: "Overseas Grosses Outdoing North America," USA Today, December 13, 2000.
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Observations results in the least-squares regression
: A computer analysis of 30 pairs of observations results in the least-squares regression equation yˆ 5 14.0 1 5.0x, and the standard deviation of the slope used in testing whether the population coefficient of correlation could be zero?
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Write a summary about sarbanes-oxley act
: Write a summary about Sarbanes-Oxley Act of 2002
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What is its wavelength
: A typical gamma ray emitted from a nucleus during radioactive decay may have an energy of 340keV . What is its wavelength? Express your answer to two significant figures and include the appropriate units.
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Slope of the true regression line
: 1. Testing the null hypothesis that the slope of the true regression line equals zero is equivalent to testing whether the true coefficient of correlation could be zero. Why?
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Coefficients of correlation and determination
: 1. Given the information in Exercise 15.13, deter- mine and interpret the coefficients of correlation and determination for January-May burned acreage in Florida versus January-May rainfall in the state.
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What are key similarities and differences
: Obtain the 2009 annual report of Vodafone www.vodafone.com. Contrast the accounting approaches used in notes 13 for "investments in joint ventures" and 14 for "investments in associated undertakings." What are key similarities and differences?
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Find out the least-squares regression line
: Determine the least-squares regression line for pre- dicting the percentage of males who are overweight based on the number of calories consumed per day.
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Estimated total enrollment for an hmo
: What would be the estimated total enrollment for an HMO firm that administered 20 plans? Source: The Wall Street Journal Almanac 1999, p. 565.
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Equation for predicting gross revenue
: Given these data, determine the least-squares equation for predicting gross revenue on the basis of the number of equity partners, then interpret its slope. What would be the estimated gross revenue for a firm with 200 equity partners? Source:..
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