Question

In: Statistics and Probability

4. In a research project to determine the relationship between the numbers of articles read and...

4. In a research project to determine the relationship between the numbers of articles read and students’ grades for the paper, 6 students were randomly chosen and below data was collected

x (number of articles read)

y (students grades in %)

7

82

2

55

5

95

9

85

4

75

8

87

a) Draw a scatter plot for the data;

b) Find the equation of the line of best fit. Draw the line of best fit on the scatter plot diagram. Round off the coefficients to one decimal place;

c) Find the coefficient of determination. Write a statement of interpretation for it.

5. Solve question 3 again, using a statistical software (i.e., Excel, StatDisk, etc.). Attach the printed output to your assignment.    

=> I need a screen shot

Solutions

Expert Solution

( a ) Scatter plot

( b )

equation of the line of best fit. is

y = 58.8 + 3.6⋅x

( c )

coefficient of determination. ( r2 ) = ( 0.6907 )2

= 0.4771

= 47.71 %

Interpretation :

47.71 % of variability in the students grades ( y ) is explained by the variation in  number of articles read ( x )

orchestra answered 1 year ago
Next > < Previous

Related Solutions

An agricultural research station is trying to determine the relationship between the yield of sunflower seeds...
An agricultural research station is trying to determine the relationship between the yield of sunflower seeds and the amount of fertilizer applied and the quality of soil (on the 10-point scale). To determine the relationship, five different fields were planted. In each field, four different plots were defined. In each plot, a different amount of fertilizer was used. The plot assignments for the fertilizer application were randomly selected in each field. Pounds of Sunflower Seeds (per Acre) Quality of soil...
An agricultural research station is trying to determine the relationship between the yield of sunflower seeds...
An agricultural research station is trying to determine the relationship between the yield of sunflower seeds and the amount of fertilizer applied and the quality of soil (on the 10-point scale). To determine the relationship, five different fields were planted. In each field, four different plots were defined. In each plot, a different amount of fertilizer was used. The plot assignments for the fertilizer application were randomly selected in each field. Pounds of Sunflower Seeds (per Acre) Quality of soil...
5. An agricultural research station is trying to determine the relationship between the yield of sunflower...
5. An agricultural research station is trying to determine the relationship between the yield of sunflower seeds and the amount of fertilizer applied and the quality of soil (on the 10-point scale). To determine the relationship, five different fields were planted. In each field four different plots were defined. In each plot a different amount of fertilizer was used. The plot assignments for the fertilizer application were randomly selected in each field (See file Q5). 1. Based on the output...
An agricultural research station is trying to determine the relationship between the yield of sunflower seeds...
An agricultural research station is trying to determine the relationship between the yield of sunflower seeds and the amount of fertilizer applied and the quality of soil (on the 10-point scale). To determine the relationship, five different fields were planted. In each field four different plots were defined. In each plot a different amount of fertilizer was used. The plot assignments for the fertilizer application were randomly selected in each field (See file Q5). A. Based on the output tables,...
Research question #2.   Is there a relationship between the relationship between the juveniles’ age and the...
Research question #2.   Is there a relationship between the relationship between the juveniles’ age and the change of the scores from pretest to posttest (the larger the change, the better the outcome)? (13 points) SPSS Dataset SPSS Data for HW (500 cases).sav (available in Canvas) Variable Names in the dataset age: Age of juveniles change: Change of the scores from pretest to posttest What are the dependent variable (DV) and independent variable (IV)? (1 point) State the research hypothesis (non-directional)...
Individually, students will read 3-5 journal / research articles that pertain to marketing a service (as...
Individually, students will read 3-5 journal / research articles that pertain to marketing a service (as opposed to a product). Students will then write a report synthesizing those articles. APA methodology applies to this assignment.
Discuss the difference between practitioner articles and academic research articles. In your discussion clearly explain each...
Discuss the difference between practitioner articles and academic research articles. In your discussion clearly explain each of these two article types. Also, present your opinion supporting which article type you prefer to use in your term paper and why.
You will select, read and analyze 4 articles from a variety of newspapers or magazines to...
You will select, read and analyze 4 articles from a variety of newspapers or magazines to provide some ‘real value’ to the theoretical contents that we deal with in the course. You may use web sites as sources of articles but attach a hard copy of the articles you are reviewing. Articles should relate to any 4 of the following macroeconomic topics and should not be earlier than October 1' 2020. Articles should be critiqued (as explained below). The critique...
Critically read no less than six articles on the differences between the sales manager and the...
Critically read no less than six articles on the differences between the sales manager and the sales leader. Make an argument and followed by your opinion supported with evidence from the articles.
Read the following articles on the impending trade war between US and Canada and comment on...
Read the following articles on the impending trade war between US and Canada and comment on the effects on businesses on both sides of the border as a result of new US imposed tariffs and retaliatory action by Canada. Column: In a trade war with Canada, Illinois — and Chicago — would be a casualty President Donald Trump is teeing up a trade war with Canada, and the state of Illinois, along with the Chicago area, could get bloodied should...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT