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4. A member of the state legislature has expressed concern about the differences in the mathematics test scores of high school freshmen across the state. She asks her research assistant to conduct a study to investigate what factors could account for the differences. The research assistant looked at a random sample of school districts across the state and used the factors of percentage of mathematics teachers in each district with a degree in mathematics, the average age of mathematics teachers and the average salary of mathematics teachers PREDICTOR COEF SE COEF CONSTANT 35.178 7.595 MATH DGR 0.22073 0.07131 AGE 0.3353 0.1901 SALARY 0.093 0.1675 Analysis of Variance SOURCE DF SS Regression 3 1053.09 Residual error 32 1858.5 a) Write the least squares prediction equation. b) What is the number of observations in the sample? c) Based on the multiple regression model given above, estimate the mathematics test score and calculate the value of the residual, if the percentage of teachers with a mathematics degree is 50.0, the average age is 43 and the average salary is 48,300 (48.3). d) If the actual mathematics test score for these factors is 68.50, what is the error for this observation? 5. For the above equation (question # 4) answer the following: What is the total sum of squares? What is the explained variation? What is the mean square error? 6. For the above equation (question # 4), calculate the Coefficient of Determination and the Adjusted coefficient of Determination and Test for the overall usefulness of the model using F-Statistic at 5% and 1% significance levels. 7. For the above Regression (question # 4), test the usefulness (or significance of the three independent variables using t-test for 5% and 1% significance levels.
McCloskey claims that to get the proof going, genuine indisputable examples of design and purpose are needed. Explain this standard of indisputability which he calls very conclusive objection. Is it reasonable?
Apply to organized crime. Which empirical and speculative theories are most suitable when applied to organized crime and criminal behavior?
If the beam stress cannot exceed the yield stress, derive the material index to help us choose the lightest weight material.
Im trying to find two aspects of the 1960's that have influenced the contemporary view of sex. I need two of them, since its just a three page essay.
Americans' deep-seated political belieds ...
Using the six general trends of the general environment give a hypothetical example of how each trend could affect a small business. Be specific in what the business in each example produces or services.
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For each breth that a person takes, there is a new boundary that develops(@ each bifurcation in the lung). By using an aerosolized drug during inspiration (diffusion coefficient in air = 0.01 cm2/sec), we are able to characterize its mass transfer to..
What different forms can segregation take in US school and when can these methods affirm diversity and when are they detrimental to learning?
The Edmonton Protocol allowed for the successful transplant of which organ? Vast majority of human collagen hypertrophic scar is?
The CEO reviews the performance of her company in the past month's Profit & Loss Statement to determine if the company is "on track" in terms of its sales and profitability goals. This CEO is engaged in which function?
Many people try to represent themselves when it comes to law, but not when it comes to health issues.
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