A homeowner recorded the amount of electricity in kilowatt-hours (KWH) consumed in his house on each of 21 days. He also recorded the numbers of hours his air conditioner (AC) was turned on and the numbers of times his electric clothes dryer (DRYER) was operated. His objective was to relate the KWH consumption to the AC and DRYER usage. In addition, he wanted to know how many KWH’s the AC used per hour and the number of KWH’s used in each run of the DRYER. Statistical regression analysis can serve this purpose. Use chapter 14 as a guideline to develop a regression model that predicts KWH consumption from AC and Dryer usage. 1. Perform a simple linear regression using only AC to predict KWH. 2. Perform a simple linear regression using only Dryer to predict KWH. 3. Perform a multiple linear regression using both AC and Dryer to predict KWH. 4. Compare pvalues for the F-test, Rsquare, and the regression coeficients for the results of 1, 2, and 3. To maximize participation (and credit), do task 1 and 2 on one day, 3 on the second day, and 4 on the third day for a total of three posts. Question 1

Regression Analysis: KWH versus AC
The regression equation is KWH = 27.9 + 5.34 AC

Predictor Coef SE Coef T P
Constant 27.851 7.807 3.57 0.002
AC 5.341 1.031 5.18 0.000

S = 14.4530 R-Sq = 58.6% R-Sq(adj) = 56.4%

Analysis of Variance
Source DF SS MS F P
Regression 1 5609.7 5609.7 26.85 0.000
Residual Error 19 3968.9 208.9
Total 20 9578.6

Question 2
Regression Analysis: Dryer versus KWH
The regression equation is Dryer = - 0.395 + 0.0281 KWH

Predictor Coef SE Coef T P
Constant -0.3948 0.5897 -0.67 0.511
KWH 0.028113 0.008636 3.26 0.004

S = 0.845182 R-Sq = 35.8% R-Sq(adj) = 32.4%

Analysis of Variance

Source DF SS MS F P
Regression 1 7.5705 7.5705 10.60 0.004
Residual...

...KMGT-680-2A: Introduction to Project Management
Discussion Question (7)
H000319111
When a project comes to an end successfully, it shows that it was handled well which creates an avenue for more projects in the future. The experiences gotten by the team members will increase and they will work well because they have been appraised from the just concluded one. The reputation of the company is also rated high because the PM and the team have performed but the...

...Week 6
Bus 599
Comparing First-movers in Technology"
From the first and second e-Activities, analyze the key ways in which Intel and Microsoft capitalized on and reaped substantial first-mover advantages in pioneering new technologies. Provide a rationale to support your response.
Answer：Both companies have made major impacts on the world for two different reasons. Microsoft is thoroughly known for the famous operating systems whereas Intel made the first microprocessor....

...There are many ways that a company can motivate its employees. Consider the different types of pay and benefits described on pp. 420–423 of the text. What type of incentive do you think is most effective for creating a motivating work environment? Why?
Creating a motivating work environment can be a difficult task. Employers need to consider the needs of employees and the average pay rates for the work required when determining salaries and benefits. To keep employees motivated, it is...

...1.
A) FIRST MUST GET THE PRESENT VALUE(PV) - PLUG IN THE (PV) TO “FV= pv * [1 + (1+rm(mt))]”
PV=p * [1-(1+ rm-mt)](rm) FV=pv*[1-(1+rMmt)]
PV=200*[1-(1+.0512-12*30)](.0512) FV= 37256.32 * [1+.0512(12*30)]
PV=200*[1-(1+.004166666-360)].004166666 FV= 37256.32 * 4.467744314...

...these 10 items, search in the Student Readiness Orientation (SRO) or WLDN 1000. Type your response under each question and then submit this document to your Instructor by following the guidelines in the WLDN 1000 Week 1 Application. Each question is worth 12 points.
1. Find the Week 4 Resources for WLDN 1000 and open the document titled What is a Rubric (and Why Should I Use One?). Copy and paste the first paragraph of the Word document here.
A rubric...

...Source: http://www.wiley.com/college/browning/0471389161/pdf/ch14
Suppose you provide consulting services on price-setting strategies to a number of airline companies. Please respond to the following questions based on the lecture concepts of this week.
In what way the “game theory” can be a useful optimization tool in making pricing decisions by airlines?
Baggage fees introduced by airlines provides for an interesting game theoretic analysis between the various...

...Math 221
Quiz Review for Weeks 5 and 6
1. Find the area under the standard normal curve between z = 1.6 and z = 2.6.
First we look for the area of both by doing “2nd ,Vars, NORMALCDF” and inputting “-1000, “Z,” 0, 1 then find the difference between both.
2. A business wants to estimate the true mean annual income of its customers. It randomly samples 220 of its customers. The mean annual income was $61,400 with a standard deviation of $2,200. Find a 95% confidence...

...ACC 290 Week 5 Discussion Questions and Responses
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