User Account

All Pages

What effect would installing 18cm of insulation instead of

Assignment Help Basic Statistics
Reference no: EM13582316

Question: Cellulon, a manufacturer of a new type of home insulation, wants to develop guidelines for builders and consumers regarding the effects on natural gas consumption (1) of the thickness of the insulation in the attic of a home and (2) of the outdoor temperature. In the laboratory they varied the insulation thickness and temperature. A few of the findings are:

Mo. Nat. Gas     Thickness of        Outdoor
Consumption      Insulation         Temperature
(cubic ft)             (cm)               (Celsius)

    Y                     X1                   X2
30.3                   12.5                    4
26.9                    30                      4
22.1                    20                      9

Based on the sample results, the regression equation is:

Y1 (upper) = 38.12 - 0.194X1 - 1.349X2

a. How much natural gas can homeowners expect to use per month if they install 15cm of insulation and the outdoor temperature is 10 degrees Celsius.

b. What effect would installing 18cm of insulation instead of 15 have on the monthly natural gas consumption (assuming the outdoor temperature remains at 10 degrees Celsius)?

c. Why are the regression coefficients, b1 and b2, negative? Is this logical?

Reference no: EM13582316

Questions Cloud

Conduct a test of hypothesis to determine whether either : question in a multiple regression equation two independent variables are considered and the sample size is 25. the
Compute the standard error of estimate about 95 of the : refer to the following anova
Similarly most other countries have not in the past : 1. in 1929 there were more than 25000 commercial banks in the u.s. today there are still approximately 7000 banks. in
Adam borrows 4500 at 12 percent annually compounded : 1. adam borrows 4500 at 12 percent annually compounded interest to be repaid in four equal annual installments. the
What effect would installing 18cm of insulation instead of : question cellulon a manufacturer of a new type of home insulation wants to develop guidelines for builders and
Alli co is a merchandising business the account balances : alli co. is a merchandising business.nbsp the account balances for alli co. as of november 30 2012 unless otherwise
As age increases by one year how much does estimated : question thompson photo works purchased several new highly sophisticated machines. the production department needed
Identify the customers and servers for this queuing system : the seabuck and roper company have a large warehouse in southern california to store its inventory of goods until they
Rad the case study burger king beefs up global operations : international businesscomplete your assigned readings before you complete the assessment.prepare a paper 700 to 1050

Reviews

Write a Review

Basic Statistics Questions & Answers

  Explain why is not the mean the fiftieth percentile

The simplest useful numerical description of a distribution consists of measure of center and measure of spread. The Median is the 50th percentile. Q: Why is not the Mean the 50th percentile?

  How many different systems can the salesman select

A salesman must select 2 of the first component and 3 of the second to take on a sales call. How many different systems can the salesman select?

  Probability problem set-personal website hits and email use

Hits on a personal web site occur quite infrequently. They occur randomly and independently with an average of five per week.

  Question on parameters

A recent study of breast cancer revealed that 13% of the women in the sample used antibiotics more than 500 days in their lifetime.

  Establish interval estimate around sample mean

Find the standard error of mean. Also establish an interval estimate around the sample mean using one standard deviation of the mean.

  What statistical test would be appropriate

Assume you have the following data: Ho: u = 2,450, S = 400, n = 100, and X = 2,300. Conduct a hypothesis test at the .01 significance level.

  Determining probability of sample mean

Jim Sears manufactures farm equipment. His work requires the use of steel bars which must have a mean length of at least 50 inches. The bars can be purchased from a supplier in Kansas

  What type of control chart is used in software process

A project manager at COMSOFT corporation has collected statistics on the organization's software development process. He has the size of each project in number of lines of code for the past 20 projects and the number of lines of code in error disc..

  Chebychev theorem and empirical rule

If we are dealing with non-normal data we use Chebychev's Theorem. While not as precise, it does provide some level of utility. If we use Chebychev

  Explain why you would also like to know the standard

two companies market new batteries targeted at owners of personal music players. duratunes claims a mean battery life

  Probability of the diameter of a selected bearing

The diameters of ball bearings are distributed normally. The mean diameter is 74 millimeters and the variance is 16. Find the probability that the diameter of a selected bearing is less than 78 millimeters.

  Calculate average time between arrivals

Simulate arrival of cars at service station for one hour using different stream of random numbers from those used in (a), and calculate average time between arrivals.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd