« previous next »

Author Question: If the age distribution of customers at a major retail chain is thought to be bell-shaped with a ... (Read 54 times)

sc00by25

  • Hero Member
  • *****
  • Posts: 596
on: Jun 24, 2018
If the age distribution of customers at a major retail chain is thought to be bell-shaped with a mean equal to 43 years and a standard deviation equal to 7 years, the percentage of customers between the ages of 29 and 57 years is:
 
  A) approximately 81.5.
  B) approximately 68.
  C) at least 75.
  D) approximately 95.

Question 2

What is a slack? Explain with an example.
 
  What will be an ideal response?
Statistics, Data Analysis, and Decision Modeling ¦ Evans ¦ 5th Edition
Buy Test-Bank


Sassygurl126

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

The slack is the difference between the right- and left-hand sides of a constraint.
For example, consider the following constraint:
7x + 8y  168
If the optimal values of x and y are 5.25 and 10.5 respectively, the slack can be calculated as:
168 - (7  5.25 + 8  10.5 ) = 47.25


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Relationships among major invertebrate lineages Relationships among major invertebrate lineages
Water chain in cytochrome f Water chain in cytochrome f
This photograph of a Union soldier just freed from Andersonville prison, stunned and enraged norther This photograph of a Union soldier just freed from Andersonville prison, stunned and enraged norther
The typical distribution of neurofibrillary tangles and amyloid plaques in the brains of patients ... The typical distribution of neurofibrillary tangles and amyloid plaques in the brains of patients ...
Major muscles of the abdomen. Major muscles of the abdomen.
Structures of the major prostaglandins and thromboxane A2 Structures of the major prostaglandins and thromboxane A2
Video: Definition of heart rate

For a complete list of videos, visit our video library