This topic contains a solution. Click here to go to the answer

Author Question: Suppose that scores on a test are normally distributed with a mean of 80 and a standard deviation of ... (Read 40 times)

dejastew

  • Hero Member
  • *****
  • Posts: 562
Suppose that scores on a test are normally distributed with a mean of 80 and a standard deviation of 8. You have been asked to find the 70th percentile.
 
  After sketching a standard normal curve and shading the area of interest, the next step in solving this problem is to use the table of areas. Would you look for 0.7 in the body of the table or in the left-hand column? Explain your reasoning.

Question 2

Multiple choice questions on a test that include as one of the choices none of the above are an example of what type of question?
 
  A) open question B) reader response question
  C) closed question D) framing question



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

connor417

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

Answers will vary. Possible answer: You would look for 0.7 in the body of the table since it represents a percentage (an area), not a z-score.

Answer to Question 2

C




dejastew

  • Member
  • Posts: 562
Reply 2 on: Jul 25, 2018
Thanks for the timely response, appreciate it


ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Excellent

 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

For a complete list of videos, visit our video library