How do we establish measurement validity?

• Explain concept formation. Drawing from the Sartori article, describe common problems associated with conceptualization. • Complete the following sentence: Measurement serves to bridge ______ with ______. • What is an observable implication? Explain exactly how observable implications permit “measurement” to perform its crucial “bridging” function. • What is measurement validity? How do we establish […]

Do you name what you’re trying to find and the statistical test used to analyze your data?

Based on the research assignment that I will provide and attach, please complete the proposed results, in which Your Proposed Results section will be graded keeping the following things in mind: Do you name what you’re trying to find and the statistical test used to analyze your data? you will be identifying the correct statistical […]

Discuss how you determine the direction of the association between the two variables.

Overview Recall that samples are used to generate a statistic, which businesses use to estimate the population parameter. You have learned how to take samples from populations and use them to produce statistics. For two quantitative variables, businesses can use scatterplots and the correlation coefficient to explore a potential linear relationship. Furthermore, they can quantify […]

For your region, what is the range of values for the 95% confidence interval of square footage for homes in your market?

In this project, you will demonstrate your mastery of the following competency: Apply statistical techniques to address research problems Perform hypothesis testing to address an authentic problem Overview In this project, you will apply inference methods for means to test your hypotheses about the housing sales market for a region of the United States. You […]

Is a male more likely or less likely than a female to spend at least \$15 during a visit to this area?

The major shopping areas in the community of Springdale include Springdale Mall, West Mall, and the downtown area on Main Street. A telephone survey has been conducted to identify strengths and weaknesses of these areas and to find out how they fit into the shopping activities of local residents. The 150 respondents were also asked […]

What is the most important thing that you learned from this Discussion post, and why?

Week 4 Discussion: Hypothesis Testing This week, we are looking at inferences about samples taken from the population using hypothesis testing. We study several different hypothesis tests in the class, including normal distribution, t-Test, Chi-Square equal frequencies, Chi-Square unequal frequencies, Chi-Square independence, and Analysis of Variance (ANOVA). In this discussion we will perform a t […]

Identify the primary independent variable and defend why it is important by stating:

Directions Using the “North Valley Real Estate” Excel Dataset located in the “Files” Section of the course (Left-hand Side Menu Bar). The Final Research Project for the course, and all supporting assignments to the project, will be executed using the “North Valley Real Estate” dataset. Please make sure that your paper conforms to APA style […]

What conclusions can you derive from your analysis?

The purpose of this assignment is to apply simple regression techniques to find factors that determine the car values. 1. Open the dataset of FamilySedans (attached) and read the case entitled “Finding the Best Car Value” in its entirety at the end of Chapter 14. 2. Use descriiptive statistics to summarize the data and make […]

What is the least squares method and how is it used to find the estimated regression equation?

What is the least squares method and how is it used to find the estimated regression equation? What is the role of least squares method in calculating coefficient of determination? Explain.

Can we conclude that there is a significant relationship between student population and sales?

Follow the instructions under the title of “Using Excel’s Regression Tool for the Armand’s Pizza Parlors Example” to develop regression equation and ANOVA table as in Figure 14.13 and answer the following questions: 1. Open the dataset of Armand’s (attached). 2. Follow the instructions under the title of “Using Excel’s Regression Tool for the Armand’s […]