Question

The information below is the number of miles (in hundreds of miles) the manager’s sales representatives...

The information below is the number of miles (in hundreds of miles) the manager’s sales representatives travel per month and the amount of sales (in thousands of dollars) per month.

? = 9

∑ ? = 49

∑ ? 2 = 363

∑ ? = 713

∑ ? 2 = 57803

∑ ?? = 6324

Calculate coefficient R, and find the equation of the regression line.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A manager wishes to determine the relationship between the number of miles (in hundreds of miles)...
A manager wishes to determine the relationship between the number of miles (in hundreds of miles) the manager's sales representatives travel per month and the amount of sales (in thousands of dollars) per month. For the given data calculate the following: X=miles travelled 5 6 12 10 11 15 6 y=sales 31 32 70 61 64 60 45 a) Correlation coefficient b) Equation of regression line c) Find the value of sales when they travelled is 7 miles.
A manager wishes to determine the relationship between the number of years the manager's sales representatives...
A manager wishes to determine the relationship between the number of years the manager's sales representatives have been with the company and their average monthly sales (in thousands of dollars). Calculate the linear correlation coefficient. Years with company, x Sales, y 5 34 6 36 13 81 10 65 11 68 18 64 6 51 4 58 14 123
A random sample of nine custom homes currently listed for sale provided the following information on...
A random sample of nine custom homes currently listed for sale provided the following information on size and price. Here, x denotes size, in hundreds of square feet, rounded to the nearest hundred, and y denotes price, in thousands of dollars, rounded to the nearest thousand. The summaries of the data are given by n=9, ∑xi=270, ∑x2i=8316, ∑yi=5552, ∑y2i=3504412, ∑xiyi=169993 Given the summaries of the data, find the least-squares regression equation. Graph the regression equation and the data points. Interpret...
Exercise 1: Use the sample data below to answer the following question(s). The paired data consist...
Exercise 1: Use the sample data below to answer the following question(s). The paired data consist of the cost of regionally advertising (in thousands of dollars) a certain pharmaceutical drug and the number of new prescriptions written (in thousands). Cost 9 2 3 4 2 5 9 10 Number 85 52 55 68 67 86 83 73 Find the value of the linear correlation coefficient r. Find the equation of the regression line, letting Number of Surgeries be the independent...
Use the sample data below to answer the following question(s). The paired data consist of the...
Use the sample data below to answer the following question(s). The paired data consist of the cost of regionally advertising (in thousands of dollars) a certain pharmaceutical drug and the number of new prescriptions written (in thousands). submit the file includes the outcomes from excel Cost 9 2 3 4 2 5 9 10 Number 85 52 55 68 67 86 83 73 Find the value of the linear correlation coefficient r. Find the equation of the regression line, letting...
A taxi company monitoring the safety of its cabs kept track of the number of miles...
A taxi company monitoring the safety of its cabs kept track of the number of miles tires had been driven (in thousands) and the depth of the tread remaining (in mm). Their data are displayed in the scatter plot. They found the correlation to be r = – .86 and the equation of the regression line to be tread=36-0.6(miles). Use the equation to predict the tread for a car driven 25 thousand miles. Use the equation to predict the tread...
Barclay's manager of Financial Service wants to find out the relationship between the number of client...
Barclay's manager of Financial Service wants to find out the relationship between the number of client contacts and the dollar amount of sales ($ thousands). She recorded the amount of sales ($ thousands) last month from ten randomly selected clients. The results from the Regression are presented below: y^=1.4606x-6.5321;R2=0.735 What are the Independent and Dependent Variables? Independent variable:   Dependent variable:   What is the value of the correlation coefficient? Interpret it. What % of the variation in the amount of sales...
The amount spent on groceries per week (y) and the number of household members (x) are...
The amount spent on groceries per week (y) and the number of household members (x) are shown below. The amount spent on groceries per week (y) and the number of household members (x) are shown below. x 2 3 3 4 1 5 y 383 420 466 547 206 622 A) Calculate the correlation coefficient r. -> 0.9783 B) Calculate the equation of the regression line. (Round your numerical values to two decimal places.)
1. What is a manager’s other expense percentage for utilities if sales were $75,000 in a...
1. What is a manager’s other expense percentage for utilities if sales were $75,000 in a month and utility costs for the month were $6,000? 2. What is a manager’s other expense Cost Per Guest for marketing, if sales were $90,000 in a month, 3,000 guests were served, and marketing costs for the month were $1,500? 3. A manager pays $300 per month for landscape services for his restaurant grounds. Which type of monthly other expense is the amount paid...
Each month, the owner of a restaurant records y=monthly sales receipts and x=amount spent that month...
Each month, the owner of a restaurant records y=monthly sales receipts and x=amount spent that month on advertising, both in thousands of dollars. For the first four months of operation, the observations are as shown in the table. Advertising Sales 0 4 1 7 3 9 5 11 a.Find the mean and standard deviation for each variable. b.Find the values for a and b in the regression line. c. Find the correlation coefficient. Interpret the relationship between two variables using...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT