A. develops a correlation matrix. Round 3 decimal places. Negative signs if needed. A-2 Do you see any problems with multicollinearity? There is? B-1 Determine the regression equation. Round 3 decimal places. B-2 What is the value of R2. Round 3 decimal places And also compute the Anova
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.
![wants to study adding more stores in this region. He believes there are two main factors that indicate the amount families spend on
groceries. The first is their income and the other is the number of people in the family. The director gathered the following sample
information.
Family
Food
Income
Size
$ 73.98
54.90
$5.04
4
4.08
3.
5.76
94.14
4.
4.
3.48
4.20
52.02
1
65.70
6.
4.80
53.64
4.
4.32
79.74
3.
5.04
68.58
4.
6.12
165.60
10
3.24
64.80
1
11
4.80
138.42
3
12
3.24
125.82
1
13
6.60
77.58
14
4.92
171.36
15
6.60
82.08
141.30
36.90
16
5.40
17
6.00
5.
18
5.40
56.88
4.
19
3.36
71.82
1.
4.68
4.32
20
69.48
3
21
54.36
22
5.52
87.66
4.56
5.40
4.80
38.16
43.74
48.42
23
3.
24
7.
25
Food and income are reported in thousands of dollars per year, and the variable size refers to the number of people in the household.
************
E Click here for the Excel Data File:
a-1. Develop a correlation matrix. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal
places.)
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Data on the income, size and food consumption in dollars are given for 25 families.
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