Author Question: All bell-shaped curves _________. a. are normal curves c. are symmetrical b. have means = 0 d. a ... (Read 126 times)

viki

  • Hero Member
  • *****
  • Posts: 525
All bell-shaped curves _________.
 
  a. are normal curves c. are symmetrical
  b. have means = 0 d. a and c

Question 2

A distribution of raw scores is positively skewed. You want to transform it so that it is normally distributed. Your friend, who fancies herself a statistics whiz, advises you to transform the raw scores to z scores; that the z scores will be normally distributed. You should _________.
 
  a. ignore the advice because your friend flunked her last statistics test
  b. ignore the advice because z distributions have the same shape as the raw scores.
  c. take the advice because z distributions are always normally distributed
  d. take the advice because z distributions are usually normally distributed



frogdreck123456

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

C

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

For a complete list of videos, visit our video library