+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

### Scenario dr olson is interested in the effects of three

Scenario: Dr. Olson is interested in the effects of three different methods for losing weight in long-distance truck-drivers. He tested a sample of 60 truck drivers. Participants were randomly assigned to one of three gr ...

### Hypothesesh0 there is no correlation between hours walking

Hypotheses H0 There is no correlation between hours walking and weight loss. H1 There is a positive correlation between hours walking and weight. H2 There is a negative correlation between hours walking and weight loss. ...

### 1 must all experiments include a control group explain2 in

1. Must all experiments include a control group? Explain. 2. In what way do researchers take a risk if they do not pilot test the independent variable they plan to use in an experiment?

### What would the null and alternate hypothesis be for the

What would the null and alternate hypothesis be for, " The airlines claim that complaints average less than 15 per month per airport. To investigate the problem an independent watchdog agency contacted a random sample of ...

### Topicnbspstate party structurethreadnbspfirst review the

Topic:  State Party Structure Thread:  First, review the Reading & Study presentation "Political Structure at the State Level" as an example about the structure of the Republican Party in Virginia Select 1 of the major p ...

### On a 2-d regular not wrapped-around mesh a message from a

On a 2-D regular (not wrapped-around) mesh, a message from a source (X s , Y s ) is to be sent to a destination (X d , Y d ). If any shortest path can be used, what is the probability that the message follows the shortes ...

### A researcher conducted a factor analysis of five items on

A researcher conducted a factor analysis of five items on which participants rated their current mood. Interpret the factor matrix that emerged from this factor analysis. Specifically, what do the three factors appear to ...

### 1 a researcher has developed the hypothesis that teenagers

1. A researcher has developed the hypothesis that teenagers are better able to learn about and remember technological information than are older adults, whereas older adults are better able to remember information about ...

### 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%

### Twenty years ago 40 children were born in the same hospital

Twenty years ago 40 children were born in the same hospital in Denmark. Researchers classified the children by whether or not they were breast-fed for at least 3 months. They were interested in whether breast-feeding ten ...

• 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.

### 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

### Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen