BUS-352 Module 2 Chapter 3 Problem Set - Problems 3.3, 3.8, 3.13, 3.21, and 3.43 | Documents and Forms | Research Papers

BUS-352 Module 2 Chapter 3 Problem Set - Problems 3.3, 3.8, 3.13, 3.21, and 3.43

BUS-352 Module 2 Chapter 3 Problem Set - Problems 3.3, 3.8, 3.13, 3.21, and 3.43 PLDZ-929 Instant Download Price
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BUS-352 Module 2 Chapter 3 Problem Set - Problems 3.3, 3.8, 3.13, 3.21, and 3.43

Business Statistics - Analysis Using Graphs and Descriptive Statistics

Grand Canyon University

 

Text book - Business Statistics: A First Course (6th Edition)

Complete problems 3.3, 3.8, 3.13, 3.21, and 3.43 in the textbook. 

Submit one Excel file. Put each problem result on a separate sheet in your file.

 

Problem 3.3

The following set of data is from a sample of n = 7;

12 7 4 9 0 7 3

a. compute the mean, median, and mode

b. compute the range, variance, standard deviation, and coefficient of variation.

c. compute the Z scores. Are there any outliers?

d. describe th e shape of the data set………………………..

 

 

Problem 3.8

4.2

5.03

5.86

6.45

7.38

7.54

8.46

8.47

9.87

a. compute the mean, median, and mode

b. compute the range, variance, standard deviation, and coefficient of variation.

c. Are the data skewed? If so, how?

d. based on the results of (a) through ©, what conclusions can you reach concerning the amount that customer spend for lunch

 

Problem 3.13

Is there a difference in the variation of the yields of different types of investments? The file contains the yields for a one-year certificate of deposit (CD) and a five-year certificate of deposit (CD), for 23 banks in the United States, as of April 4, 2011. Source: Data extracted from www.Bankrate.com, April 4, 2011.

a. for one year and five-year CDs, separately compute the variance, standard deviation, range and coefficient of variation

b. based on the results of (a), do one year or five-year CDs have more variation in the yield offered? Explain

 

Problem 3.21

a. compute Q1 and Q3 and interquartile range

b. list the five number summary.

c. construct box plot and describe the shape.

 

Problem 3.43

College football players trying out for the NFL are given the Wonderlic standardized intelligence test the file wonderlic contains the average wonderlic score of football players trying out for the NFL and the graduation rate for the football players at selected schools Source: Data extracted from extracted from S. Walker, “The NFL’s Smartest Team,” The Wall Street Journal, September 30, 2005, pp. W1, W10).

a) Compute the covariance

b) Compute the coefficient of correlation

c) Based on (a) and (b), what conclusions can you reach about the relationship between the average Wonderlic score and graduation rate?

BUS-352 Module 2 Chapter 3 Problem Set - Problems 3.3, 3.8, 3.13, 3.21, and 3.43 Business Statistics - Analysis Using Graphs and Descriptive Statistics Grand Canyon University Text book - Business Statistics: A First Course (6th Edition) Compl
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