Customer Loyalty

17 In regression analysis, the coefficient of determination R2 measures the amount of variation in y

Collects numerical data that can be quantified. Research with numbers. Focus on measuring, collecting and drawing relationships through statistical analysis and experimentation.

The coefficient of variation is in the “fair” range for data consistency, for all quartiles except the top quartile which is in the “good” range. (Gardner, 2012)

Answer = A visual representation of the relationship between the independent and the dependant variables. Either bar or line graph.

A researcher found a significant relationship between a person's age, a, the number of hours a person works per week, b, and the number of accidents, y, the person has per year. The relationship can be represented by the multiple regression equation y = -3.2 + 0.012a + 0.23b. Predict the number of accidents per year (to the nearest whole number) for a person whose age is 42 and who works 46 hours per week.

In particular, the students within this class demonstrate a strong Numeracy level and an attentive nature to integrated studies such as science.

Coefficient of determination is the percentage of the variation in the _ variable that results from the _ variable.

11. Using MINITAB run the multiple regression analysis using the variables INCOME, SIZE and YEARS to predict CREDIT BALANCE. State the equation for this multiple regression model.

Regression analysis will be performed on all variables to determine if relationships exist between variables.

In order to figure out how variables relates to each other and the connections among the variables, or one can predict the other. I will choose three quantitative variables or two quantitative variables and one categorical variable on each pairs. I will also use graphs of scatter plots; regression and correlation to understand that how one variable affect other two variables. There are six groups below:

"There are several different kinds of relationships between variables. Before drawing a conclusion, you should first understand how one variable changes with the other. This means you need to establish how the variables are related - is the relationship linear or quadratic or inverse or logarithmic or something else" ("Relationship Between Variables ", n.d)

The total sum of squares is 400 and the sum of squares errors is 100, what is the coefficient of determination?

a.) The correlation coefficient for this data set is 0.4669 or 46.69% which shows that this weak but positive correlation indicates that as the years from 1960 increase, the average number of home runs increase at a constant rate.

Although there has been a slight increase in Science, the results are still less than desirable when compared with other schools in the district and the City. As seen in the graph, only 14% of the students passed at Levels 3 and 4 in 2004 and by 2005, only 18% were able to pass at the same levels.

The objective of this lab experiment was to objectively examine the rate of catalase enzyme activity through the manipulation of concentration levels temperature, and pH levels, interpret what was observed and learned, and to explain what enzymes are and what they do through the use of the scientific method. February 5, 2015 Introduction An enzyme is a protein created by an organism that increases the rate at which chemical reactions occur. There are three different types of enzymes; digestive, metabolic, and food.