Reference no: EM131092149
THE TRASH BAG CASE DS TrashBag
The mean and the standard deviation of the sample of 40 trash bag breaking strengths are
x = 50.575 and s = 1.6438.
a What does the histogram in Figure 2.17 (page 53) say about whether the Empirical Rule should be used to describe the trash bag breaking strengths?
|
Rank
|
Team
|
Value ($mil)
|
Revenue ($mil)
|
|
1
|
Hendrick Motorsports
|
350
|
177
|
|
2
|
Roush Fenway
|
224
|
140
|
|
3
|
Richard Childress
|
158
|
90
|
|
4
|
Joe Gibbs Racing
|
152
|
93
|
|
5
|
Penske Racing
|
100
|
78
|
|
6
|
Stewart-Haas Racing
|
95
|
68
|
|
7
|
Michael Waltrip Racing
|
90
|
58
|
|
8
|
Earnhardt Ganassi Racing
|
76
|
59
|
|
9
|
Richard Petty Motorsports
|
60
|
80
|
|
10
|
Red Bull Racing
|
58
|
48
|
b Use the Empirical Rule to calculate estimates of tolerance intervals containing 68.26 percent,
95.44 percent, and 99.73 percent of all possible trash bag breaking strengths.
c Does the estimate of a tolerance interval containing 99.73 percent of all breaking strengths provide evidence that almost any bag a customer might purchase will have a breaking strength that exceeds 45 pounds? Explain your answer.
d 
How do the percentages of the 40 breaking strengths in Table 1.9 (page 14) that actually fall into the intervals [x ±s], [x ± 2s], and [x ± 3s] compare to those given by the Empirical Rule? Do these comparisons indicate that the statistical inferences you made in parts b and c are reasonably valid?
|
Measure risks in financial projects
: How do we define and measure risks in financial projects?
|
|
The student health center for a free dental examination
: Five students visiting the student health center for a free dental examination during National Dental Hygiene Month were asked how many months had passed since their last visit to a dentist. Their responses were as follows.
|
|
Understand the role of personal selling
: Scenario – Enviro-Cars Ltd Jack & Thomas, in partnership, run successful electric-cars dealerships (Enviro-Cars Ltd) in England. They have a garage with a showroom and workshop for servicing and maintenance of customer vehicles spread over several co..
|
|
Why is it important to resolve conflict in the workplace
: Identify and describe the two main types of conflict that arise in the workplace. Why is it important to resolve conflict in the workplace? What steps should be taken to resolve a conflict
|
|
The mean and the standard deviation of the sample
: The mean and the standard deviation of the sample of 40 trash bag breaking strengths are
|
|
Explain different types of operators used in oracle
: Assignment 1:Ques1. Explain different types of operators used in ORACLE.Ques2. Explain the following commands with an example:
|
|
Develop chart that lists theo characteristics of congenital
: Develop a chart that lists theo characteristics of congenital heart defects, blood disorders, asthma, cystic fibrosis, insulin-dependent diabetes mellitus, chronic renal failure, childhood cancer, and congenital and acquired infectious diseases.
|
|
Effect of the current value and trajectory
: The effect of the current value, and trajectory, of the Yuan on the US and world economies. The theoretical arguments for changes to the Chinese exchange rate regime, including accelerated revaluation and/or allowing a free float
|
|
Generalized by introducing a third parameter
: The two-parameter gamma distribution can be generalized by introducing a third parameter g, called a threshold or location parameter: replace x in (4.8) by x - g and This amounts to shifting the density curves in Figure 4.27 so that they begin the..
|