« previous next »

Author Question: Which of the following is NOT an acceptable method of estimating the population standard deviation? ... (Read 105 times)

RRMR

  • Hero Member
  • *****
  • Posts: 557
on: Jun 29, 2018
Which of the following is NOT an acceptable method of estimating the population standard deviation?
 a. Perform a pilot study.
  b. Divide the estimated range of variation by 2.
  c. Use an estimate based on past studies of the same phenomenon.
  d. Divide the estimated range of variation by 6.
  e. Use an estimate based on the method used to measure the important variables.

Question 2

Toppen Olaf Olson, plant manager at the Ridgway Tanning Factory, was interested in the average number of hides currently sold each day at the plant. The daily variance of hides sold at the plant last year was 132 . Olaf would like to be 90 percent confident (z = 1.645) in his results and be within a daily range of +/ 5 hides. Olaf needs a sample of what size to achieve his desired level of precision and confidence?
 a. 15
  b. 22
  c. 472
  d. 1,886
  e. 2,788


millet

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jun 29, 2018
Answer to Question 1

b

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Worldwide Variations in Population and Income Levels Developed countries represent only 18% of the Worldwide Variations in Population and Income Levels Developed countries represent only 18% of the
Estimating Daily Caloric Expenditure Estimating Daily Caloric Expenditure
ROM exercises on a patient’s wrist: ulnar deviation. ROM exercises on a patient’s wrist: ulnar deviation.
Functional brain imaging is the major method of cognitive neuroscience. This image—taken from the ... Functional brain imaging is the major method of cognitive neuroscience. This image—taken from the ...
Population and Settlement Population and Settlement
Measuring the client’s weight with a standard platform scale Measuring the client’s weight with a standard platform scale
Video: Gastrulation: cross section of the frog

For a complete list of videos, visit our video library