Author Question: The assumption that the errors or residuals are independent is best checked by: A) looking at a ... (Read 26 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
The assumption that the errors or residuals are independent is best checked by:
 
  A) looking at a normal probability plot of the residuals.
  B) looking a scatter plot of each x versus y.
  C) looking at a residual plot versus x and checking for curvature.
  D) looking at a plot of the residuals versus time and checking for trends.

Question 2

A company that fills soft drinks into bottles wishes to establish an -chart to monitor the average fill level in the bottles. To do this, the company has taken a series of samples of size n = 4 bottles. The overall average fill is 12.03 ounces.
 
  The average range for the subgroups has been .06 ounces. Based on this information, what is the upper limit of the 3-sigma control limit?A) .729
  B) .0437
  C) 12.09
  D) 12.074



Bigfoot1984

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

For a complete list of videos, visit our video library