Chapter 2 Exercise 4
Two thousand one hundred frequent business travelers are asked which midwestern city they prefer: Indianapolis, Saint Louis, Chicago, or Milwaukee. 115 liked Indianapolis best, 400 liked Saint Louis, 1365 liked Chicago, and the remainder preferred Milwaukee. Develop a frequency table and a relative frequency table to summarize this information. (Round relative frequency to 3 decimal places.)
|
City |
Frequency |
Relative Frequency |
|
Indianapolis |
[removed] |
[removed] |
|
St. Louis |
[removed] |
[removed] |
|
Chicago |
[removed] |
[removed] |
|
Milwaukee |
[removed] |
[removed] |
Chapter 2 Exercise 6
|
A small business consultant is investigating the performance of several companies. The fourth-quarter sales for last year (in thousands of dollars) for the selected companies were: |
|
Company |
Fourth-Quarter Sales |
|
Hoden Building Products |
$ 1,645.2 |
|
J & R Printing Inc. |
4,757.0 |
|
Long Bay Concrete Construction |
8,913.0 |
|
Mancell Electric and Plumbing |
627.1 |
|
Maxwell Heating and Air Conditioning |
24,612.0 |
|
Mizelle Roofing & Sheet Metals |
191.9 |
|
The consultant wants to include a chart in his report comparing the sales of the six companies. |
Identify a bar chart that compares the fourth-quarter sales of these corporations.
Chapter 2 Exercise 12
|
The Quick Change Oil Company has a number of outlets in the metropolitan Seattle area. The daily number of oil changes at the Oak Street outlet in the past 20 days are: |
|
The data are to be organized into a frequency distribution. |
|
a. |
How many classes would you recommend? |
|
d. |
Organize the number of oil changes into a frequency distribution. (Round relative frequency answers to 2 decimal places.) |
Chapter 2 Exercise 14
|
The food services division of Cedar River Amusement Park Inc. is studying the amount that families who visit the amusement park spend per day on food and drink. A sample of 40 families who visited the park yesterday revealed they spent the following amounts: |
|
58 |
58 |
53 |
51 |
62 |
43 |
52 |
53 |
63 |
62 |
62 |
65 |
61 |
||
|
a. Organize the data into a frequency distribution, using seven classes and 15 as the lower limit of the first class. What class interval did you select? (Round your answer to the nearest whole number.) |
|
|
b. Where do the data tend to cluster? (Select all that apply.) |
|
|
|
|
Chapter 2 Exercise 18
|
Ecommerce.com, a large Internet retailer, is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders. The lead times are reported in days. |
|
Lead Time (days) |
Frequency |
|
0 up to 5 |
6 |
|
5 up to 10 |
7 |
|
10 up to 15 |
12 |
|
15 up to 20 |
8 |
|
20 up to 25 |
7 |
|
|
|
|
Total |
40 |
|
a. |
How many orders were studied? |
|
b. |
What is the midpoint of the first class? (Round your answer to 1 decimal place.) |
|
c. |
What are the coordinates of the first class for a frequency polygon assuming we draw a frequency polygon using the midpoints? (Round your answer to 1 decimal place.) |
Chapter 2 Exercise 20
|
The following cumulative frequency polygon shows the selling price ($000) of houses sold in the Billings, Montana, area. |
|
a. |
How many homes were studied? |
|
b. |
What is the class interval? |
|
c. |
One hundred homes sold for less than what amount? |
|
d. |
About 75% of the homes sold for less than what amount? |
|
e. |
Estimate the number of homes in the $150,000 up to $200,000 class. |
|
f. |
About how many homes sold for less than $225,000? |
Labs can be completed online also if required
Week 2 Work take from here
https://www.homeworkmarket.com/content/qnt-561-week-2-mcgrawhill-questions-latest-2016-version
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