Math Homework

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The price of gasoline has been rising 2% per month.
The price of gasoline has been rising 2% per month. Identify: Independent variable: dependent variable : Circle one: Linear Growth Exponential Growth… read more
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The total number of students in a school increases 300
The total number of students in a school increases 300 students each years. Identify: Independent variable: dependent variable:Circle one: Linear Growth Exponential Growth… read more
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For Scott: Hi Scott I need help with some math questions
For Scott: Hi Scott I need help with some math questions here: http://www.mediafire.com/?3sz1b4zo2wws4c3… read more
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21) A public opinion poll surveyed a simple random sample of
21) A public opinion poll surveyed a simple random sample of voters. Respondents were classified by gender and by voting preference—Republican, Democrat, or Independent. The results follow. Voting Pre… read more
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Explain what is wrong and why it is wrong. 1. If the claim
Explain what is wrong and why it is wrong. 1. If the claim says that the population mean is greater than 200 and the sample mean is 215, we can say that the claim is true even without a formal test. 2… read more
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21) A public opinion poll surveyed a simple random sample of
21) A public opinion poll surveyed a simple random sample of voters. Respondents were classified by gender and by voting preference—Republican, Democrat, or Independent. The results follow. Voting Pre… read more
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Chapter 13 1. A linear regression with 3 predictors and 33
Chapter 13 1. A linear regression with 3 predictors and 33 observations violates Evan's Rule. A) True B) False 2.If a regression model's calculated F is 43.82, we could say that the explained variance… read more
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1. For a hypothesis test of a single population mean at 95%
1. For a hypothesis test of a single population mean at 95% confidence level, a calculated Z score of 1.7 supports the conclusion that A. the population mean is greater than the hypothesized value B. … read more
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In math function, suppose Y is a function of X, denoted by
In math function, suppose Y is a function of X, denoted by Y= f(x) It means y depends on X .Thus x is independent and y is dependent variable. Here, function f is used to describe relation between y a… read more
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Explain what is wrong and why it is wrong. 1) If the claim
Explain what is wrong and why it is wrong. 1) If the claim says that the population mean is greater than 200 and the sample mean is 215, we can say that the claim is true even without a formal test. 2… read more
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Master's Degree
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1) The following ANOVA tables was generated using Microsoft
1) The following ANOVA tables was generated using Microsoft Excel. Based on the ANOVA table given, is there enough evidence at the 0.05 level of significance to conclude that the linear relationship b… read more
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You are working with a company selling building material to
You are working with a company selling building material to builders. You predict the quarterly purchases of customers based on their current purchases by using a linear regression model. These predic… read more
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Master's Degree
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Orignal work only... please.. 1). Does correlation equal causation
Orignal work only... please.. 1). Does correlation equal causation? Does the strength of correlation depend onthe direction? What is the meaning of a zero correlation? Explain your answers. 2). What i… read more
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Master's Degree
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25) Statistical methods that require few assumptions, if any,
25) Statistical methods that require few assumptions, if any, about the population distribution are known as A. nonparametric techniques. B. All of these C. parametric techniques. D. free agent techni… read more
Scott
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How may correlation analysis be misused to explain a cause-and-effect
How may correlation analysis be misused to explain a cause-and-effect relationship? Discuss the relationship between independent and dependent variables with regard to correlation and regression analy… read more
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Q1 Using regression techniques, we can plot a scatter diagram
Q1: Using regression techniques, we can plot a scatter diagram and plot a line to the data using the Least Squares method. Generally, the points do not fall directly on the line. Why does this happen?… read more
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Linear regression allows us to understand the relationship
Linear regression allows us to understand the relationship between two variables. The mini-tutorial: Conduct a linear regression analysis. provides instructions for conducting linear regression analys… read more
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Linear Regression relies heavily on correlation analysis.
Linear Regression relies heavily on correlation analysis. a. what is correlation analys and why is it improtant to us when we are using regression analysis? b. provide a definition of R and R squared?… read more
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