stats

posted by .

Identify the direction and all possible interpretations of each of the following correlations. Be sure to identify each example as positive, negative, or zero (not correlated). Then give all possible causal interpretations for the results.


Many students in Professor Handel’s class express that they want a review session. Professor Handel agrees to hold an open review session for two hours the day before the exam. He then has his TA write down when each student arrives at the session and when they depart. When the exams are graded, Professor Handel announces there will be no more review sessions. The longer students spent at the review session the lower their score on the exam.

  • stats -

    For positive correlation both variables increase/decrease together.

    For negative correlation, one variable increases, while the other decreases.

    If there is a correlation significantly greater than chance, either one variable causes the other or a third variable might be effecting the other two.

    I'll let you do the interpretations.

  • stats -

    negative correlation
    interpretation that the longer the students reviewed impacted their exam grade

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Decartes Rule of Signs

    Could you explain to me decartes Rule of signs?
  2. economics

    Identify similarities and differences between common goods, public goods, private goods, and natural monopolies. Provide an example of each type of good and justify your answers. Discuss possible positive or negative externalities …
  3. Physics

    How is it possible for gravitational potential energy to be negative?
  4. stats

    Identify the direction and all possible interpretations of each of the following correlations. Be sure to identify each example as positive, negative, or zero (not correlated). Then give all possible causal interpretations for the …
  5. stats

    Identify the direction and all possible interpretations of each of the following correlations. Be sure to identify each example as positive, negative, or zero (not correlated). Then give all possible causal interpretations for the …
  6. Statistics

    True or False Questions. Statistics' students of a class of Lyceum want to calculate the average number of chocolate pieces in a standard package of biscuits SANTAS. They choose a random sample of biscuits, measure chocolate pieces …
  7. Statistics

    True or False. Help please! Statistics' students of a class of Lyceum want to calculate the average number of chocolate pieces in a standard package of biscuits SANTAS. They choose a random sample of biscuits, measure chocolate pieces …
  8. math

    f(x)= x^3 - 2x^2 - 21x - 18 all possible rational zeros # of possible positive zeros # of possible negative zeros find all the real zeros
  9. Technical Communication

    Which of the following statements about a message’s meaning is true?
  10. Technical wrtiting

    Internet Source Distortion/Misrepresentation From media,or the Internet, identify an example of each of the following sources of distortion (faulty causal and/or statistical inference) a. A study with questionable sponsorship or motives …

More Similar Questions