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

Author Question: Referring to question 29, the probability of making a Type II error is _________. a. 0.7764 c. ... (Read 73 times)

vicotolentino

  • Hero Member
  • *****
  • Posts: 552
Referring to question 29, the probability of making a Type II error is _________.
 
  a. 0.7764 c. 0.2236
  b. 0.2400 d. 0.6459

Question 2

An English teacher has been teaching a sixth grade composition class for many years. He has the feeling that over the past several years, the writing ability of students has changed. A national test of proficiency in composition was administered 5 years ago. The resulting distribution of scores was normally shaped, had a mean of 85 and a standard deviation of 10.9 . In order to test his feeling, he gives his present class of 43 students the same proficiency test. The resulting mean is 80 and the standard deviation is 8.7 . Using the z test with  = 0.052 tail, what is your conclusion?
 
  a. reject H0; the present class appears deficient in composition writing
  b. retain H0; the present class is not deficient in composition writing
  c. accept H0; the present class is not deficient in composition writing
  d. reject H0; the present class is not deficient in composition writing



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ansleighelindsey

  • Sr. Member
  • ****
  • Posts: 364
Answer to Question 1

A

Answer to Question 2

A




vicotolentino

  • Member
  • Posts: 552
Reply 2 on: Jun 19, 2018
Great answer, keep it coming :)


peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Gracias!

 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

There are more bacteria in your mouth than there are people in the world.

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?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

For a complete list of videos, visit our video library