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 112 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
:D TYSM

DylanD1323

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Measuring Limb Length Measuring Limb Length
Major Motor Pathways Major Motor Pathways
Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms
Selected Specialty Supplements Selected Specialty Supplements
Student Test Scores versus GDP per Capita Student Test Scores versus GDP per Capita
Video: Mitochondrial Structure & ETC Protein Complexes (Protein Complexes and Electron Transport)

For a complete list of videos, visit our video library