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Are geography journals worth their cost? In Geoforum (Vol.
Chapter , Problem 127E(choose chapter or problem)
Are geography journals worth their cost? In Geoforum (Vol. 37, 2006), Simon Fraser University professor Nicholas Blomley assessed whether the price of a geography journal is correlated with quality. He collected pricing data (cost for a 1-year subscription in U.S. dollars) for a sample of 28 geography journals. In addition to cost, three other variables were measured: Journal Impact Factor (JIF), defined as the average number of times articles from the journal have been cited; number of citations for a journal over the past 5 years; and Relative Price Index (RPI), a measure developed by economists. [Note: A journal with an RPI less than 1.25 is considered a “good value.”] The data for the 28 geography journals are listed in the accompanying table.
a. Construct a scatterplot for the variables JIF and cost. Do you detect a trend?
b. Construct a scatterplot for the variables number of cites and cost. Do you detect a trend?
c. Construct a scatterplot for the variables RPI and cost. Do you detect a trend?
Questions & Answers
QUESTION:
Are geography journals worth their cost? In Geoforum (Vol. 37, 2006), Simon Fraser University professor Nicholas Blomley assessed whether the price of a geography journal is correlated with quality. He collected pricing data (cost for a 1-year subscription in U.S. dollars) for a sample of 28 geography journals. In addition to cost, three other variables were measured: Journal Impact Factor (JIF), defined as the average number of times articles from the journal have been cited; number of citations for a journal over the past 5 years; and Relative Price Index (RPI), a measure developed by economists. [Note: A journal with an RPI less than 1.25 is considered a “good value.”] The data for the 28 geography journals are listed in the accompanying table.
a. Construct a scatterplot for the variables JIF and cost. Do you detect a trend?
b. Construct a scatterplot for the variables number of cites and cost. Do you detect a trend?
c. Construct a scatterplot for the variables RPI and cost. Do you detect a trend?
ANSWER:Step 1 of 4
Let us consider a data set:
Cost($) |
JIF |
Cites |
RPI |
468 |
3.139 |
207 |
1.16 |
624 |
2.943 |
544 |
0.77 |
499 |
2.388 |
249 |
1.11 |
90 |
2.325 |
173 |
0.3 |
698 |
2.115 |
377 |
0.93 |
717 |
1.922 |
333 |
0.96 |
1312 |
1.652 |
445 |
1.49 |
1297 |
1.622 |
773 |
0.91 |
479 |
1.591 |
297 |
0.99 |
1118 |
1.56 |
298 |
1.58 |
242 |
1.475 |
215 |
0.53 |
1099 |
1.316 |
282 |
1.92 |
1733 |
1.234 |
240 |
3.42 |
1619 |
1.204 |
446 |
1.56 |
197 |
1.029 |
62 |
1.13 |
345 |
0.947 |
72 |
1.83 |
499 |
0.78 |
62 |
1.99 |
530 |
0.667 |
135 |
1.81 |
388 |
0.661 |
96 |
1.44 |
343 |
0.518 |
99 |
1 |
538 |
0.5 |
24 |
0 |
397 |
0.481 |
89 |
1.36 |
253 |
0.429 |
74 |
1.05 |
1115 |
0.413 |
79 |
4.33 |
266 |
0.295 |
18 |
3.11 |
213 |
0.902 |
106 |
0.88 |
223 |
0.857 |
81 |
0.94 |
646 |
0.853 |
74 |
3.38 |
Here our goal is:
a). We need to construct a scatterplot for the variables JIF and cost. Also we have to check trend values.
b). We need to construct a scatterplot for the variables number of cites and cost. Also we have to check trend.
c). We need to construct a scatterplot for the variables RPI and cost. Also we have to check trend.