This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A test of sobriety involves measuring the subject's motor skills. Twenty randomly selected sober ... (Read 94 times)

kwoodring

  • Hero Member
  • *****
  • Posts: 560
on: Aug 1, 2018
A test of sobriety involves measuring the subject's motor skills.
 
  Twenty randomly selected sober subjects take the test and produce a mean score of 41.0 with a standard deviation of 3.7. At the 0.01 level of significance, test the claim that the true mean score for all sober subjects is equal to 35.0.

Question 2

If r(20) = +.21, p > .05 for variables X and Y, then the best prediction of a Y score from an X score is .
 
  a. the value of X
  b. the value of X - Y
  c. the value of Y
  d. 1.00


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

prumorgan

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Aug 1, 2018
Answer to Question 1

Test statistic: t = 7.252. Critical values: t = -2.861, 2.861. Reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the mean is equal to 35.0.

Answer to Question 2

C


kwoodring

  • Member
  • Posts: 560
Reply 2 on: Aug 1, 2018
Excellent

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Selected Antiemetics Selected Antiemetics
Major Motor Pathways Major Motor Pathways
Selected Drugs for Superficial Mycoses Selected Drugs for Superficial Mycoses
Mantoux tuberculin skin test. Mantoux tuberculin skin test.
Cylinder Leakage Test Cylinder Leakage Test
Sensory and Motor Homunculi Sensory and Motor Homunculi
Video: Appendicitis Animation

For a complete list of videos, visit our video library