Statistics-QA453

Statistics-QA453 Online Services

 

Problem 1
 

High school students planning to attend university were randomly assigned to watch one of four videos about SMU. Each video differed in the particular aspect of university life of students that was emphasized: athletics, academics, social life, or art and culture. After watching a video, each student was given a questionnaire that measured his or her desire to attend SMU. Student’s answers were analyzed to provide a measure of their desire to attend SMU. Scores reflect the percentage of questions indicating a strong preference to attend SMU (high scores reflect a greater desire to attend SMU). A total of 16 students were shown one of the videos. The data is presented in the table below.
 

Athletics Social life Academics Art/Culture
 

68 89 74 76
56 78 82 71
69 81 79 69
70 77 80 65
 

a) At the 1% level of significance, do the data suggest that the type of activity emphasized in a university video affect the desire of prospective students to attend SMU? Use the classical approach. (16 pts)
 

(1) Hypothesis (2 pts)
(2) Test Statistic (3 pts)
(3) Decision Rule (2 pts)
(4) Analysis (6 pts)
(5) Decision/Conclusion (3 pts)
(6) Discuss the underlying assumptions of the test used in (a). (4pts)
 

Problem 2
 

A major Canadian bank is interested in comparing three alternative methods that could be used for evaluating loan applications. Loan decisions can be based on
 

(a) the applicant’s balance sheet (method B),
 

(b) examination of key financial ratios (method F), or
 

(c) use of a new decision support system (method D). In order to compare these three methods, four of the bank’s loan officers were randomly selected from among Ontario loan officers. Each officer employed each of the three methods for one month when making loans. The methods were used in different random orders by each of the officers in the study. After two years had passed, the number of bad loans for each loan officer using each of the evaluation method was determined. This data appears in the table below. Loan Officer Loan Evaluation Method
 

B F D
1 8 5 4
2 6 4 3
3 5 2 1
4 4 1 0
 

a) Determine if there is a difference among the three methods in the mean number of bad loans made. Use a significance level of 5% and p-value approach. (10 pts)
 

b) Use Excel to solve the problem in part (a); attach the Excel printout in the space provided below. Do you get the same results as in part (a)? (5 pts)
 

c) What are the strengths of this type of experimental design? (3 pts)
 

d) What are the weaknesses of this type of experimental design? (2 pts)

 

You can read more about our case study assignment help services here.
 

How it Works

How It works ?

Step 1:- Click on Submit your Assignment here or shown in left side corner of every page and fill the quotation form with all the details. In the comment section, please mention Case Id mentioned in end of every Q&A Page. You can also send us your details through our email id support@assignmentconsultancy.com with Case Id in the email body. Case Id is essential to locate your questions so please mentioned that in your email or submit your quotes form comment section.

Step 2:- While filling submit your quotes form please fill all details like deadline date, expected budget, topic , your comments in addition to Case Id . The date is asked to provide deadline.

Step 3:- Once we received your assignments through submit your quotes form or email, we will review the Questions and notify our price through our email id. Kindly ensure that our email id assignmentconsultancy.help@gmail.com and support@assignmentconcultancy.com must not go into your spam folders. We request you to provide your expected budget as it will help us in negotiating with our experts.

Step 4:- Once you agreed with our price, kindly pay by clicking on Pay Now and please ensure that while entering your credit card details for making payment, it must be done correctly and address should be your credit card billing address. You can also request for invoice to our live chat representatives.

Step 5:- Once we received the payment we will notify through our email and will deliver the Q&A solution through mail as per agreed upon deadline.

Step 6:-You can also call us in our phone no. as given in the top of the home page or chat with our customer service representatives by clicking on chat now given in the bottom right corner.

Case Approach

Scientific Methodology

We use best scientific approach to solve case study as recommended and designed by best professors and experts in the World. The approach followed by our experts are given below:

Defining Problem

The first step in solving any case study analysis is to define its problem carefully. In order to do this step, our experts read the case two three times so as to define problem carefully and accurately. This step acts as a base and help in building the structure in next steps.

Structure Definition

The second step is to define structure to solve the case. Different cases has different requirements and so as the structure. Our experts understand this and follow student;s university guidelines to come out with best structure so that student will receive best mark for the same.

Research and Analysis

This is the most important step which actually defines the strength of any case analysis. In order to provide best case analysis, our experts not only refer case materials but also outside materials if required to come out with best analysis for the case.

Conclusion & Recommendations

A weak conclusion or recommendations spoil the entire case analysis. Our expert know this and always provide good chunks of volume for this part so that instructors will see the effort put by students in arriving at solution so as to provide best mark.

Related Services

 

Problem 3
 

The managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the firm affects the sales generated by the broker. They sample 12 brokers and determine the number of new clients they have enrolled in the last year and their sales amounts in thousands of dollars. The data is presented in the table below:
 

Broker 1 2 3 4 5 6 7 8 9 10 11 12
Clients 27 11 42 33 15 15 25 36 28 30 17 22
Sales 52 37 64 55 29 34 58 59 44 48 31 38
 

a) Is there a relationship between the numbers of new clients a broker brings and the sales generated by the broker? In order to answer this question you will need to calculate the correlation between the number of new clients and sales. What is the correlation between the number of new clients and sales? If there is a relationship, describe it in your own words. (5 pts)
 

b) Find the equation of the regression line for predicting a broker’s sale from the number of new clients he brings in. (5 pts)
 

c) Plot the 12 points in a scatter plot and draw the regression line. (5 pts)
 

d) Is the sign of the slope logical? If the slope had the opposite sign, what would that tell you? (2 pts)
 

e) What would you predict for the amount of sales (in $1,000) for Horatio who brings in 25 new clients into the firm? (3 pts)
 

f) What is the 95% confidence interval (i.e., prediction interval) for the amount of sales (in $1,000) for Horatio who brings in 25 new clients into the firm? (5 pts)
 

g) What is the 95% confidence interval for the mean amount of sales (in $1,000) for a broker who brings in 25 new clients into the firm? (5 pts)
 
Product code:Statistics-QA453
 
Looking for best Statistics-QA453 online ,please click here

Summary
User Rating
5 based on 1 votes