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

Author Question: Assume that the correlation coefficient between class attendance and number of problems missed on an ... (Read 174 times)

javeds

  • Hero Member
  • *****
  • Posts: 570
on: Jul 13, 2018
Assume that the correlation coefficient between class attendance and number of problems missed on an exam is (-.77). Which of the following statements regarding this finding is correct?
 
  a. students who had fewer absences answered more questions correctly
   b. students who had more absences answered more questions correctly
  c. a negative correlation value is impossible; there must be a mistake in the calculations
   d. the number of problems answered correctly is below the class mean

Question 2

Assume that within one study the regression equation relating daily saturated fat intake in grams (x) to blood cholesterol level (y) is Y-hat = 130 + 5X. What is the value of the y-intercept for this problem?
 
  a. 1
  b. 5
  c. 130
  d. impossible to determine


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

moormoney

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 13, 2018
Answer to Question 1

A

Answer to Question 2

C


javeds

  • Member
  • Posts: 570
Reply 2 on: Jul 13, 2018
YES! Correct, THANKS for helping me on my review

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

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?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

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

A tapeworm, Taenia pisiformis, a member of the class Cestoda. A tapeworm, Taenia pisiformis, a member of the class Cestoda.
Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc
Negative reading oxygen sensor voltage can be caused by several problems. Negative reading oxygen sensor voltage can be caused by several problems.
Average Number of Days per Year with Thunderstorms Average Number of Days per Year with Thunderstorms
Prove the argument using two column proof number 5 only Prove the argument using two column proof number 5 only
Linear programming problems using the simplex method. Linear programming problems using the simplex method.
Video: The Lagging Strand in DNA Replication and Replication in Action

For a complete list of videos, visit our video library