New

Connect on Whatsapp : +97143393999 , Uninterrupted Access, 24x7 Availability, 100% Confidential. Connect Now

Securing Higher Grades Costing Your Pocket? Book Your Assignment at The Lowest Price Now!
loader
Add File

Error goes here

Files Missing!

Please upload all relevant files for quick & complete assistance.

Guaranteed Higher Grade!

HI6007 Statistics For Business Decisions

tag 0 Download 2 Pages / 295 Words tag 23-11-2020
  • Course Code: HI6007
  • University: Holmes Institute
    icon

    MyAssignmentHelp.com is not sponsored or endorsed by this college or university

  • Country: Australia

Questions:

1 .

Below you are given the examination scores of 20 students  

52

99

92

86

84

63

72

76

95

88

92

58

65

79

80

90

75

74

56

99

 
a. Construct a frequency distribution, cumulative frequency distribution, relative frequency distribution, cumulative relative frequency distribution and percent frequency distribution for the data set using a class widthof
 
b. Construct a histogram showing the percent frequency distribution of the examination scores. Comment on the shape ofthe  

2.

Shown below is a portion of a computer output for a regression analysis relating supply (Y in thousands of units) and unit price (X in thousands of dollars).

ANOVA

 

 

 

df

SS

Regression

1

354.689

Residual

39

7035.262

 

Coefficients

Standard Error

Intercept

54.076

2.358

X

0.029

0.021

 

a.

What has been the sample size for this problem? 

b.

Determine whether or not supply and unit price are related. Use α = 0.05. 

c.

Compute the coefficient of determination and fully interpret its meaning. Be very specific.

 

d.

Compute the coefficient of correlation and explain the relationship between supply and unit price. 

e.

Predict the supply (in units) when the unit price is $50,000. 

 

3.

Allied Corporation wants to increase the productivity of its line workers. Four different programs have been suggested to help increase productivity. Twenty employees, making up a sample, have been randomly assigned to one of the four programs and their output for a day's work has been recorded. You are given the results below  

Program A

Program B

Program C

Program D

150

150

185

175

130

120

220

150

120

135

190

120

180

160

180

130

145

110

175

175

 

a.

Construct an ANOVA table.

b.

As the statistical consultant to Allied, what would you advise them? Use a .05 level of significance. 


4.

A company has recorded data on the weekly sales for its product (y), the unit price of the competitor's product (x1), and advertising expenditures (x2). The data resulting from a random sample of 7 weeks follows. Use Excel's Regression Tool to answer the following

 

Week

Price

Advertising

Sales

 

1

.33

5

20

 

2

.25

2

14

 

3

.44

7

22

 

4

.40

9

21

 

5

.35

4

16

 

6

.39

8

19

 

7

.29

9

15

a.

What is the estimated regression equation? Show the regression output. 

b.

Determine whether the model is significant overall. Use α = 0.10. 

c.

Determine if competitor’s price and advertising is individually significantly related to sales. Use α = 0.10. 

 

d.

 

e.

Based on your answer to part (c), drop any insignificant independent variable(s) and re-estimate the model. What is the new estimated regression equation? 

 

Interpret the slope coefficient(s) of the model from part (d).

Download Sample Now

Earn back the money you have spent on the downloaded sample by uploading a unique assignment/study material/research material you have. After we assess the authenticity of the uploaded content, you will get 100% money back in your wallet within 7 days.

Upload
Unique Document

Document
Under Evaluation

Get Money
into Your Wallet

Total 2 pages

Cite This Work

To export a reference to this article please select a referencing stye below:

My Assignment Help. (2020). Statistics For Business Decisions. Retrieved from https://myassignmenthelp.com/free-samples/hi6007-statistics-for-business-decisions/construct-a-frequency-distribution.html.

My Assignment Help (2020) Statistics For Business Decisions [Online]. Available from: https://myassignmenthelp.com/free-samples/hi6007-statistics-for-business-decisions/construct-a-frequency-distribution.html
[Accessed 18 August 2022].

My Assignment Help. 'Statistics For Business Decisions' (My Assignment Help, 2020) <https://myassignmenthelp.com/free-samples/hi6007-statistics-for-business-decisions/construct-a-frequency-distribution.html> accessed 18 August 2022.

My Assignment Help. Statistics For Business Decisions [Internet]. My Assignment Help. 2020 [cited 18 August 2022]. Available from: https://myassignmenthelp.com/free-samples/hi6007-statistics-for-business-decisions/construct-a-frequency-distribution.html.


We Can Help!

Get top notch assistance from our best tutors !
Excel in your academics & career in one easy click!

icon

Other Samples

Content Removal Request

If you are the original writer of this content and no longer wish to have your work published on Myassignmenthelp.com then please raise the content removal request.

icon

5% Cashback

On APP - grab it while it lasts!

Download app now (or) Scan the QR code

*Offer eligible for first 3 orders ordered through app!

screener
ribbon
callback request mobile
Have any Query?