+1-415-315-9853

info@mywordsolution.com

## Statistics

Many regions along coast in North and South Carolina and Georgia have experienced fast growth over the last 10 years. It is anticipated the growth will continue over the upcoming 10 years. This has resulted in many of the large grocery store chains building  new stores in region. The Kelley's super grocery stores chain is no exception. The director of planning For Kellys wants to study adding more stores in region. He thinks there are 2 main factors which indicate the amount families spend on groceries. The first is their income and other is the number of people in family. The director collected the following sample.

Food and income are reported in thousands of dollars for each year, and the variable size refers to number of people in household.

a. Make a correlation matrix. Do you see any problem with the multicollinearity?

b. Find out the regression equation. Describe the regression equation. How much does the additional family member add to amount spent on food?

c. Find out the value of R square? Can we conclude the value is greater than o?

d. Would you consider deleting wither of independent variables?

e. Plot the residuals in the histogram. Is there any problem with normality assumption?

f. Plot the fitted values against residuals. Does this plot point out any problems with homoscedasticity?

 Family Food Income Size Family Food Income Size 1 5.04 73.98 4 14 4.92 171.36 2 2 4.08 54.9 2 15 6.6 82.08 9 3 5.76 94.14 4 16 5.4 141.3 3 4 3.48 52.02 1 17 6 36.9 5 5 4.2 65.7 2 18 5.4 56.88 4 6 4.8 53.64 4 19 3.36 71.82 1 7 4.32 79.74 3 20 4.68 69.48 3 8 5.04 68.58 4 21 4.32 54.36 2 9 6.12 165.6 5 22 5.52 87.66 5 10 3.24 64.8 1 23 4.56 38.16 3 11 4.8 138.42 3 24 5.4 43.74 7 12 3.24 125.82 1 25 4.8 48.42 5 13 6.6 77.58 7

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M920996

Have any Question?

## Related Questions in Statistics and Probability

1. What are the advantages and disadvantages of using (a) figures, (b) tables, and (c) text to report the results of experiments in the research report? 2. Differentiate between random sampling and random assignment. Whi ...

### Manifest destiny was a powerful force in nineteenth century

"Manifest Destiny was a powerful force in nineteenth century America not only calling for the expansion of the nation physically but also for spreading its ideals to more parts of the world. In what ways was slavery both ...

### Bob like peggy wants to know if his cookies are special but

Bob, like Peggy, wants to know if his cookies are special, but all he knows are the class average of 21.65 chips per cookie, and his own data for his 10 cookies: 12,14,15,12,12,13,17,15,15,22. Conduct all six steps of hy ...

### Each of the following sentences violates a basic rule of

Each of the following sentences violates a basic rule of report writing. Indicate the relevant difficulty in each case. a. "The scale was coded to assess optimism, or lack thereof, in the participants." b. "Seven of the ...

### Explain how you would conduct the study in given question

Explain how you would conduct the study in given question as a within-subjects design. Question:- Imagine that you were conducting an experiment to examine the effect of generous role models on children's willingness to ...

### Suppose that you wanted to study children who have down

Suppose that you wanted to study children who have Down syndrome. How might you use cluster sampling to obtain a probability sample of children with Down syndrome in your state?

### Objectivenbspstudents will assume the identity of a person

Objective:  Students will assume the identity of a person living in the north or south during the Civil War and provide a personal experience in the form of a letter. Most of what we know of history prior to technologica ...

### Given the following waiting time distribution in a hotel

Given the following waiting time distribution in a hotel, compute the  expected value  of the waiting time in 2 dec pl.    Waiting time (minutes) Probability 4.0            20% 4.5 28% 5.0 32% 5.5 10% 6.0 10%

### 1 in what ways are experimental research designs preferable

1. In what ways are experimental research designs preferable to correlational or descriptive designs? What are the limitations of experimental designs? 2. What is the purpose of random assignment to conditions? 3. Descri ...

### Subway footlongs are supposed to be 12 inches long you

Subway footlongs are supposed to be 12 inches long. You strongly suspect that Subway is up to its old tricks and is reducing the size of its delicious sandwiches. For your research, you randomly sample Subways and eat 10 ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro