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 142 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
Gracias!

6ana001

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

A leech, a member of the class Hirudinea. A leech, a member of the class Hirudinea.
At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da
The U.S. Social Class Ladder The U.S. Social Class Ladder
An 8th grade class develops a linear model that predicts the number of cheerios (a small round ... An 8th grade class develops a linear model that predicts the number of cheerios (a small round ...
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Number chart Number chart
Video: Burn Animation

For a complete list of videos, visit our video library