n Click the icon o view the scatterplot of average teacher pay and per pupil expenditures. From the scatterplot, is the correlation between average teacher pay and per pupil expenditure positive, negative, or near zero? he correlation is positive, because the scatterplot shows that as average teacher pay increases, the average per pupil expenditure tends to increase, and the regression line has a positive slope. What is the slope of the regression equation? Interpret the slope in the context of the problem. Select the correct choice below and fill in the answer be Type integers or decimals. Do not round.) O Average Teacher Pay and Average Per Pupil Expenditure DA. The slope is For each additional $1 in average per pupil expenditure in a state, the average teacher pay increases by an average of $. OB. The slope is For each additional $1 in average teacher pay in a state, the average per pupil expenditure increases by an average of $. 26000- Avg Per Pupil $ = - 6968 +0.342 Avg Teacher Pay 24000- 22000- 20000- 18000- 16000- 14000- 12000- 10000- 8000- 6000- 4000- 40000 4500 50000 5500 60600 6500 70600 7500 80000 8500 Average Teacher Pay Average Per Pupil Expenditure
n Click the icon o view the scatterplot of average teacher pay and per pupil expenditures. From the scatterplot, is the correlation between average teacher pay and per pupil expenditure positive, negative, or near zero? he correlation is positive, because the scatterplot shows that as average teacher pay increases, the average per pupil expenditure tends to increase, and the regression line has a positive slope. What is the slope of the regression equation? Interpret the slope in the context of the problem. Select the correct choice below and fill in the answer be Type integers or decimals. Do not round.) O Average Teacher Pay and Average Per Pupil Expenditure DA. The slope is For each additional $1 in average per pupil expenditure in a state, the average teacher pay increases by an average of $. OB. The slope is For each additional $1 in average teacher pay in a state, the average per pupil expenditure increases by an average of $. 26000- Avg Per Pupil $ = - 6968 +0.342 Avg Teacher Pay 24000- 22000- 20000- 18000- 16000- 14000- 12000- 10000- 8000- 6000- 4000- 40000 4500 50000 5500 60600 6500 70600 7500 80000 8500 Average Teacher Pay Average Per Pupil Expenditure
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ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
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Chapter1: Equations And Graphs
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Problem 12P: Demand for Candy Bars In this problem you will determine a linear demand equation that describes the...
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Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
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Transcribed Image Text:The accompanying scatterplot shows the average teacher pay and the per pupil expenditure for 45 states out of the 50 states and the District of Columbia. The regression equation is also shown. Complete parts (a) through (d) below.
Click the icon to view the scatterplot of average teacher pay and per pupil expenditures.
a. From the scatterplot, is the correlation between average teacher pay and per pupil expenditure positive, negative, or near zero?
The correlation is positive, because the scatterplot shows that as average teacher pay increases, the average per pupil expenditure tends to increase, and the regression line has a positive slope.
b. What is the slope of the regression equation? Interpret the slope in the context of the problem. Select the correct choice below and fill in the answer bg
(Type integers or decimals. Do not round.)
Average Teacher Pay and Average Per Pupil Expenditure
O A. The slope is
For each additional $1 in average per pupil expenditure in a state, the average teacher pay increases by an average of $
O B. The slope is
. For each additional $1 in average teacher pay in a state, the average per pupil expenditure increases by an average of $
26000,
Avg Per Pupil $ =
6968 + 0.342 Avg Teacher Pay
24000-
22000-
20000-
18000-
16000-
14000-
12000-
10000-
8000-
6000-
4000+
40000 45000 50000 55000 60000 6500 70000 7500 80000 85000
Average Teacher Pay
Average Per Pupil Expenditure
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