\$20 Bonus + 25% OFF

# HI6007 Statistics For Business Decisions

0 Download5 Pages / 1,221 Words Add in library Click this icon and make it bookmark in your library to refer it later. GOT IT

## Question:

Below you are given the examination scores of 20 students (data set also provided in accompanying MS Excel file).
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 width of 10.
b. Construct a histogram showing the percent frequency distribution of the examination scores. Comment on the shape of the distribution.

Question 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).
a. What has been the sample size for this problem
b. Determine whether or not demand and unit price are related. Use α = 0.05. (2 marks) Determine whether or not demand 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.

Question 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 (data set also provided in accompanying MS Excel file).
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
b. As the statistical consultant to Allied, what would you advise them? Use a .05 level of
significance.

Question 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 questions (data set also provided in accompanying MS Excel file).
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.
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).

### Cite This Work

My Assignment Help (2021) Statistics For Business Decisions [Online]. Available from: https://myassignmenthelp.com/free-samples/hi6007-statistics-for-business-decisions/degrees-of-freedom.html
[Accessed 13 April 2021].

My Assignment Help. 'Statistics For Business Decisions' (My Assignment Help, 2021) <https://myassignmenthelp.com/free-samples/hi6007-statistics-for-business-decisions/degrees-of-freedom.html> accessed 13 April 2021.

My Assignment Help. Statistics For Business Decisions [Internet]. My Assignment Help. 2021 [cited 13 April 2021]. Available from: https://myassignmenthelp.com/free-samples/hi6007-statistics-for-business-decisions/degrees-of-freedom.html.

### Latest Statistics Samples

Answer: Case 1 ANOVA is the technique that is used to evaluate whether the results obtained from a survey is significant. The differences in the average of the values in more than two groups are estimated with the help of this technique. In this case, 35 students have given ratings to four professors. It is to be tested which professor is the nest of the four based on the ratings given by the students. Thus, in order to evaluate that, it is ...

#### MGMT2050 Statistics

Answer: Scatter plot has been used to show the relationship between the variable age and Injury Severity Score is highlighted below. Age: Age of patients does not depend on other factors and is an independent event and therefore, age would be considered as independent variable. Injury Severity Score: This depends on age and therefore, Injury Severity Score (ISS) would be considered as dependent variable. Part b Regression model Age: Ind...

#### HI6007 Statistics For Business Decision

Answer: Examination scores                             52                             63                             92 Classes Frequency  Cumulative Frequency  ...

#### BUS 302 Business Statistics II

Answer: Introduction This paper presents statistics for the top 20 richest countries in the world in terms of the real GDP per capita. Real GDP Per capita refers to a measure of the total output of a country that takes the gross domestic product (GDP) and divides it by the number of people in that country (Dharmapala & Hines, 2009). This measure is useful and important when it comes to comparing countries since it sows the relative perfor...

#### MAN4011 Introduction To Entrepreneurship

Answer: Discussion The ANOVA test helps in finding out the significant difference between the grouped means in a statistical manner. It can be seen that the value of p=.004, which is less than 0.05. This shows that there is a statistical significance between the well-being of the Turkish migrants in London with respect to self-efficacy, finance, language and culture. From the coefficient table it can be stated that the total p value for self...

Next

### Save Time & improve Grade

Just share requirement and get customized Solution.

Orders

Overall Rating

Experts

### Our Amazing Features

#### On Time Delivery

Our writers make sure that all orders are submitted, prior to the deadline.

#### Plagiarism Free Work

Using reliable plagiarism detection software, Turnitin.com.We only provide customized 100 percent original papers.

#### 24 X 7 Live Help

Feel free to contact our assignment writing services any time via phone, email or live chat. If you are unable to calculate word count online, ask our customer executives.

#### Services For All Subjects

Our writers can provide you professional writing assistance on any subject at any level.

#### Best Price Guarantee

Our best price guarantee ensures that the features we offer cannot be matched by any of the competitors.

### Our Experts

5/5

752 Order Completed

100% Response Time

### Hugh Cleave

#### Wellington, New Zealand

5/5

755 Order Completed

95% Response Time

### Douglas Cowley

#### Wellington, New Zealand

5/5

610 Order Completed

100% Response Time

### Cheryl Zhao

#### Singapore, Singapore

5/5

1758 Order Completed

99% Response Time

### FREE Tools

#### Plagiarism Checker

Get all your documents checked for plagiarism or duplicacy with us.

#### Essay Typer

Get different kinds of essays typed in minutes with clicks.

#### Chemical Equation Balancer

Balance any chemical equation in minutes just by entering the formula.

#### Word Counter & Page Calculator

Calculate the number of words and number of pages of all your academic documents.

## Refer Just 5 Friends to Earn More than \$2000

1

1

1

### Live Review

Our Mission Client Satisfaction

awesome job. hit the very good points. best of yet! love the work thanks so much for you service! i really like the work thanks

#### User Id: 605825 - 12 Apr 2021

Australia

it was great work and in short period of time ,references were good as well. Great:)

#### User Id: 402645 - 12 Apr 2021

Australia

please see comments given by tutor 1 You have not formulated an aim for this presentation and, therefore, not related it to the LOs 2 You have not identified a context to apply the theories, so you are not meeting the LOs. Although your title sta...

#### User Id: 656764 - 12 Apr 2021

Australia

Thank you for your help. Really appreciated my professor really liked it. I got good grades

Australia

## Order on the go!

Say hello to our new app