Question

In: Statistics and Probability

A study examines whether there is a relationship between how long a nurse has worked at...

A study examines whether there is a relationship between how long a nurse has worked at a large urban hospital and her or his job satisfaction. Job satisfaction scores were on a scale with a range from 25-50. Using the data and all of the information provided in the table below to...

(a) Calculate Pearson’s r correlation.

(b) Interpret the statistic, including two parts to your interpretation.

(c) Calculate a ‘coefficient of determination’ (r2) and interpret it.

Participant ID

X=Years at hospital

Y =Job satisfaction

Zx

Zy

101

10

40

+0.58

+0.83

102

6

29

-1.19

-1.00

103

14

45

+2.35

+1.67

104

8

30

-0.31

-0.83

105

10

32

+O.58

-0.50

106

8

38

-0.31

+0.50

107

7

32

108

8

35

109

9

42

110

7

27

Years at job MEAN

8.70

Years at job STD.DEV.

2.26

Job sat. MEAN

35.0

Job sat. STD.DEV.

6.0

Solutions

Expert Solution

orchestra answered 3 years ago
Next > < Previous

Related Solutions

A market research company examines the relationship between wine consumption and whether a person likes to...
A market research company examines the relationship between wine consumption and whether a person likes to watch professional tennis on television. One hundred randomly selected people are asked whether they drink wine and whether they watch tennis. The following results are obtained: Watch tennis Do not watch tennis Totals Drink wine 16 24 40 Do not drink wine 4 56 60 Totals 20 80 100 1) What is the appropriate test for this problem (1 points)? 2) Set up the...
A market research company examines the relationship between wine consumption and whether a person likes to...
A market research company examines the relationship between wine consumption and whether a person likes to watch professional tennis on television. One hundred randomly selected people are asked whether they drink wine and whether they watch tennis. The following results are obtained: Watch tennis Do not watch tennis Totals Drink wine 16 24 40 Do not drink wine 4 56 60 Totals 20 80 100 1) What is the appropriate test for this problem (1 points)? 2) Set up the...
A nurse is interested in whether there is a relationship between daily levels of stress and...
A nurse is interested in whether there is a relationship between daily levels of stress and likelihood of a heart attack. The stress scores (predictor variable) and risk of heart attack values (criterion variable) from a small sample of participants are depicted below. Stress Score                                Risk of Heart Attack (Higher values = more stress)     (Higher values = greater risk)         1                                                     9       5                                                     8       2                                                     6       5                                                     8 Set up the regression equation and use to predict the risk of heart attack for a person with...
Propose a research study that examines the relationship between population growth and health. Identify the research...
Propose a research study that examines the relationship between population growth and health. Identify the research topic, include discussion of how you would frame your research question and what theory or theories you would use, select an appropriate research methodology, weigh any ethical implications, and discuss any challenges or threats to data collection, reliability, or validity that may arise.
A recent study was conducted to determine whether there was a relationship between work (X) and...
A recent study was conducted to determine whether there was a relationship between work (X) and education (Y) where 200 people were asked two questions: 1) Are you educated? 2) Are you engaged in what?) The answer should be yes or no. Required: Calculate the coefficient of association with interpretation of the results. education no education work 113 23 no work 49 15
A recent study by the World Bank wished to determine whether there was a relationship between...
A recent study by the World Bank wished to determine whether there was a relationship between the abundance of natural resources in a country and its long term rate of economic growth. Their study used 65 (n) countries over a long period to 1995. Letting Y be the rate of growth measured as a percentage and X be a measure of natural resource abundance, the following relationship between the two variables was estimated. Standard errors of bo and b1 are...
1.A study was done to determine whether there is a relationship between snoring and the risk...
1.A study was done to determine whether there is a relationship between snoring and the risk of heart disease. Among 1,105 snorers in the study, 86 had heart disease, while only 29 of 1,379 nonsnorers had heart disease. (a)Determine a 95% confidence interval that estimates p1 − p2 = difference in proportions of snorers and nonsnorers who have heart disease. (Let p1 be the proportion of snorers and p2be the proportion of nonsnorers. Round your answers to three decimal places.)...
You have been asked to study whether there is a statistical relationship between the region of...
You have been asked to study whether there is a statistical relationship between the region of the country and the categorical number of stores that have experienced at least a 20% return rate of the item you are studying. Sample data concerning these two variables is given in appendix three. At both the 5% and 2% levels of significance, is there evidence of a relationship between the region of the country and the categorical number of stores that have experienced...
A sociologist conducted a study to determine whether there is a linear relationship between family income...
A sociologist conducted a study to determine whether there is a linear relationship between family income level (in thousand of dollars) and percent of income donated to charities. Income level                           42        48        50        59        65        72 (in 1000’s of $) Donating percent                    9          10        8          5          6          3 A) Calculate the correlation coefficient B) Using = 0.05 is there enough evidence to conclude that there is a significant linear correlation between the income level and the donating percent?...
If you wanted to conduct a case-control study to discover whether there was a relationship between...
If you wanted to conduct a case-control study to discover whether there was a relationship between Parkinson’s disease and having worked in a high stress occupation… A. How might you go about selecting the cases and the controls for this study? B. Assume that after you have selected the cases and the control you have a total of 1,000 cases and 2,000 controls. You find that among the cases 200 worked in a stressful occupation and among the controls 390...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT