# A+grade solution : mat540 week 4 homework solution

Save Time On Research and Writing
Hire a Pro to Write You a 100% Plagiarism-Free Paper.

MAT540 Week 4 Homework

Week 4 Homework

Chapter 15

2.    The manager of the Carpet City outlet needs to make an accurate forecast of the demand for Soft Shag carpet (its biggest seller).  If the manager does not order enough carpet from the carpet mill, customers will buy their carpet from one of Carpet City’s many competitors. The manager has collected the following demand data for the past 8 months:

Save Time On Research and Writing
Hire a Pro to Write You a 100% Plagiarism-Free Paper.
 Month Demand for Soft Shag Carpet (1,000 yd.) 1 8 2 12 3 7 4 9 5 15 6 11 7 10 8 12

a.       Compute a 3-month moving average forecast for months 4 through 9.

b.      Compute a weighted 3-month moving average forecast for months 4 through 9. Assign weights of 0.55, 0.33, and 0.12 to the months in sequence, starting with the most recent month.

c.       Compare the two forecasts by using MAD.  Which forecast appears to be more accurate?

6.    The manager of the Petroco Service Station wants to forecast the demand for unleaded gasoline next month so that the proper number of gallons can be ordered from the distributor. The owner has accumulated the following data on demand for unleaded gasoline from sales during the past 10 months:

 Month Gasoline Demanded (gal.) October 800 November 725 December 630 January 500 February 645 March 690 April 730 May 810 June 1,200 July 980

a.       Compute an exponentially smoothed forecast, using an α value of 0.30.

b.      Compute the MAPD.

9.    Emily Andrews has invested in a science and technology mutual fund.  Now she is considering liquidating and investing in another fund.  She would like to forecast the price of the science and technology fund for the next month before making a decision.  She has collected the following data on the average price of the fund during the past 20 months:

 Month Fund Price 1 \$63 1/4 2 60 1/8 3 61 3/4 4 64 1/4 5 59 3/8 6 57 7/8 7 62 1/4 8 65 1/8 9 68 1/4 10 65 1/2 11 68 1/8 12 63 1/4 13 64 3/8 14 68 5/8 15 70 1/8 16 72 3/4 17 74 1/8 18 71 3/4 19 75 1/2 20 76 3/4

a.       Using a 3-month average, forecast the fund price for month 21.

b.      Using a 3-month weighted average with the most recent month weighted 0.60, the next most recent month weighted 0.30, and the third month weighted 0.10, forecast the fund price for month 21.

c.       Compute an exponentially smoothed forecast, using α=0 .40, and forecast the fund price for month 21.

d.      Compare the forecasts in (a), (b), and (c), using MAD, and indicate the most accurate.

26. Carpet City wants to develop a means to forecast its carpet sales. The store manager believes that the store’s sales are directly related to the number of new housing starts in town. The manager has gathered data from county records on monthly house construction permits and from store records on monthly sales. These data are as follows:

 Monthly Carpet Sales (1,000 yd.) Monthly Construction Permits 5 21 10 35 4 10 3 12 8 16 2 9 12 41 11 15 9 18 14 26

a.       Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.

b.      Determine the strength of the causal relationship between monthly sales and new home construction by using correlation.

27. The manager of Gilley’s Ice Cream Parlor needs an accurate forecast of the demand for ice cream. The store orders ice cream from a distributor a week ahead; if the store orders too little, it loses business, and if it orders too much, the extra must be thrown away. The manager believes that a major determinant of ice cream sales is temperature (i.e., the hotter the weather, the more ice cream people buy). Using an almanac, the manager has determined the average daytime temperature for 10 weeks, selected at random, and from store records he has determined the ice cream consumption for the same 10 weeks. These data are summarized as follows:

 Week Average Temperature (degrees) Ice Cream Sold (gal.) 1 73 110 2 65 95 3 81 135 4 90 160 5 75 97 6 77 105 7 82 120 8 93 175 9 86 140 10 79 121

a.       Develop a linear regression model for these data and forecast the ice cream consumption if the average weekly daytime temperature is expected to be 85 degrees.

b.      Determine the strength of the linear relationship between temperature and ice cream consumption by using correlation.

28. Compute the coefficient of determination for the data in Problem 27 and explain its meaning

Calculate the price
Pages (550 words)
\$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Homework Writing Services
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Testimonials
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Communications
best writer and customer service. Thanks Tony!
Customer 462787, August 30th, 2022
I received a mastery on this assignment!
Customer 463143, August 31st, 2022
English 101
Good paper.
Customer 458101, April 4th, 2022
MGMT 221 Introduction to Management Information System
Thank you!
Customer 457731, February 2nd, 2022
Social Sciences
None
Customer 453751, June 14th, 2020
Military
very good job
Customer 456821, June 15th, 2022
Nursing
thks
Customer 453939, January 27th, 2020
History
Great content. Thoroughly read all instructions.
Customer 462281, April 6th, 2022
Psychology
Excellent work.
Customer 462359, March 30th, 2022
Education
Excellent.
Customer 454463, April 25th, 2022
Medicine
Good work
Customer 453187, May 25th, 2022
Public Health
Good work
Customer 452657, February 14th, 2020
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend