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 135 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
Excellent

pangili4

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Chromosome number is halved Chromosome number is halved
How to solve angle of depression problems in right triangles How to solve angle of depression problems in right triangles
Word Problems Algebra Questions Help pls Word Problems Algebra Questions Help pls
Proportional reasoning word problems Proportional reasoning word problems
Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20 Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20
Linear programming problems Linear programming problems
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library