Question

In: Statistics and Probability

A researcher observed the amount of $ given to a panhandler and rated the happiness of...

A researcher observed the amount of $ given to a panhandler and rated the happiness of the person being asked on a scale from 1-10. For C & D, happiness is the predictor and $ given is the criterion.

Here are the results:
Happiness Rating = 4 for $0 Given
Happiness Rating = 6 for $1 Given
Happiness Rating = 8 for $3 Given
Happiness Rating = 2 for $0 Given

For Happiness, M = 5, SD = 2.24
For $ Given, M = 1, SD = 1.22

A. What is the correlation coeffecient?
B. Explain your result for part A to someone who's not familiar with correlation coefficient. Make sure you explain the strength & direction of the correlation.
C. What is the predicted Z score on $ given for someone whose happiness is Z = 2?
D. What is the predicted raw score on $ given for someone whose happiness is Z = 2?

Solutions

Expert Solution


Related Solutions

A researcher observed the amount of $ given to a panhandler and rated the happiness of...
A researcher observed the amount of $ given to a panhandler and rated the happiness of the person being asked on a scale from 1-10. For C & D, happiness is the predictor and $ given is the criterion. Here are the results: Happiness Rating = 4 for $0 Given Happiness Rating = 6 for $1 Given Happiness Rating = 8 for $3 Given Happiness Rating = 2 for $0 Given For Happiness, M = 5, SD = 2.24 For...
A researcher wants to evaluate to affect of using Facebook on happiness. What an experimental or...
A researcher wants to evaluate to affect of using Facebook on happiness. What an experimental or observational study designed the more appropriate
What political-economic system is likely to produce the greatest amount of happiness?
What political-economic system is likely to produce the greatest amount of happiness?
Below is data that a researcher collected on the observed decay of a chemical in water...
Below is data that a researcher collected on the observed decay of a chemical in water as a function of time. The Researcher used an analytically technique to quantify the chemical that reports relative “peak area” or “response” values. As a result, the researcher analyzed a series of known “standards” of chemical “A” to construct a standard curve, from which the concentrations of “A” in the experimental samples could be calculated. It is known that the chemical decays by a...
Suppose that a researcher observed the aggressive behavior of 100 college students.
  Suppose that a researcher observed the aggressive behavior of 100 college students. She ends up with a distribution of 100 scores that have a mean of 20 and a standard deviation of 8. Specify what will happened to the mean and standard deviation in each of the following cases.   a. What is the new mean if 8 is added to each score? (1 points)     b. What is the standard deviation if 8 is added to each...
Two-Sample Z-test Q1. A researcher is interested in comparing the happiness scores of married and single...
Two-Sample Z-test Q1. A researcher is interested in comparing the happiness scores of married and single men. The data is below: Married Men: average happiness rating = 8.7; standard deviation = 1.4; n =100 Single Men: average happiness rating = 7.9; standard deviation = 1.2; n =80 Test whether the difference between the means of the two groups is significant at an alpha (significance level) of .10. (a) What are the null and alternate hypotheses? (b) Draw the picture of...
A researcher is interested in determining if there is a difference in the amount of time...
A researcher is interested in determining if there is a difference in the amount of time babies pay attention to other babies and to adults.  The researcher takes a group of 26 babies and randomly assigns them to two groups (there are 13 babies in each group).  In one group, babies watch a video of other babies and in the other group, babies watch a video of adults.  The researcher records how long each baby pays attention to the video.  He finds that babies...
How can we maximize both experienced happiness and remembered happiness? Kahneman’s peak-end theory of remembered happiness...
How can we maximize both experienced happiness and remembered happiness? Kahneman’s peak-end theory of remembered happiness is a good starting point. According to this theory, what we remember most about hedonic experiences are their high points and how they end. The duration of the experience is also a predictor of consumer’s remembered happiness. Select one: True False
A researcher is interested in studying the effect that the amount of fat in the diet...
A researcher is interested in studying the effect that the amount of fat in the diet and amount of exercise has on the mental acuity of middle-aged women. The researcher used three different treatment levels for the diet and two levels for the exercise. The results of the acuity test for the subjects in the different treatment levels are shown below. Diet Exercise <30% fat 30% - 60% fat >60% fat <60 minutes 4 3 2 4 1 2 2...
A researcher is interested in studying the effect that the amount of fat in the diet...
A researcher is interested in studying the effect that the amount of fat in the diet and amount of exercise has on the mental acuity of middle-aged women. The researcher used three different treatment levels for the diet and two levels for the exercise. The results of the acuity test for the subjects in the different treatment levels are shown below. Diet Exercise <30% fat 30% - 60% fat >60% fat <60 minutes 4 3 2 4 1 2 2...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT