Question
Memory performance declines with older age. Some hypothesize that memory performance declines the more physical symptoms that you report. A researcher tested 72 subjects on
Memory performance declines with older age. Some hypothesize that memory performance declines the more physical symptoms that you report. A researcher tested 72 subjects on a recall test asking them to recall a list of fifty words presented one at a time. The age of each subject was also noted. In addition, each participant completed a physical symptom questionnaire in which they reported how many physical symptoms that they suffer from. The larger the number the more physical symptoms they are reporting. A data set labeled Table 1: Total Recall Results Chart has 72 sets of data with each subject's recall age (age), number of physical symptoms (numsymp), and score (recall) noted. Conduct an analysis to properly test the effects of age and number of physical symptoms predicting recall. Please refer to Table 1: Recall Results Chart for the data analysis results.
Table 1: Recall Results Chart
Age | Numsymp | Recall |
---|---|---|
10.00 | 8.00 | 10.00 |
12.00 | 10.00 | 16.00 |
18.00 | 6.00 | 12.00 |
19.00 | 13.00 | 21.00 |
22.00 | 14.00 | 26.00 |
25.00 | 6.00 | 18.00 |
27.00 | 13.00 | 26.00 |
30.00 | 12.00 | 20.00 |
32.00 | 13.00 | 32.00 |
34.00 | 12.00 | 26.00 |
36.00 | 12.00 | 30.00 |
38.00 | 4.00 | 36.00 |
10.00 | 8.00 | 10.00 |
12.00 | 10.00 | 16.00 |
18.00 | 6.00 | 12.00 |
19.00 | 13.00 | 21.00 |
22.00 | 14.00 | 26.00 |
25.00 | 6.00 | 18.00 |
27.00 | 13.00 | 26.00 |
30.00 | 12.00 | 20.00 |
32.00 | 11.00 | 32.00 |
34.00 | 11.00 | 26.00 |
36.00 | 12.00 | 30.00 |
38.00 | 18.00 | 36.00 |
10.00 | 8.00 | 10.00 |
12.00 | 10.00 | 16.00 |
18.00 | 6.00 | 12.00 |
19.00 | 13.00 | 21.00 |
2200 | 14.00 | 26.00 |
25.00 | 6.00 | 18.00 |
27.00 | 1300 | 26.00 |
30.00 | 12.00 | 20.00 |
32.00 | 13.00 | 32.00 |
34.00 | 2.00 | 26.00 |
36.00 | 3.00 | 30.00 |
38.00 | 4.00 | 36.00 |
10.00 | 8.00 | 10.00 |
12.00 | 10.00 | 16.00 |
18.00 | 6.00 | 12.00 |
19.00 | 13.00 | 21.00 |
22.00 | 14.00 | 16.00 |
25.00 | 6.00 | 18.00 |
27.00 | 13.00 | 26.00 |
30.00 | 12.00 | 20.00 |
32.00 | 13.00 | 32.00 |
34.00 | 1.00 | 26.00 |
36.00 | 2.00 | 30.00 |
38.00 | 2.00 | 36.00 |
10.00 | 8.00 | 10.00 |
12.00 | 10.00 | 16.00 |
18.00 | 6.00 | 12.00 |
19.00 | 13.00 | 21.00 |
22.00 | 14.00 | 26.00 |
25.00 | 6.00 | 18.00 |
27.00 | 13.00 | 26.00 |
30.00 | 2.00 | 20.00 |
32.00 | 3.00 | 32.00 |
34.00 | 2.00 | 26.00 |
36.00 | 2.00 | 30.00 |
38.00 | 2.00 | 36.00 |
10.00 | 8.00 | 10.00 |
12.00 | 10.00 | 16.00 |
18.00 | 6.00 | 12.00 |
19.00 | 13.00 | 21.00 |
22.00 | 14.00 | 26.00 |
25.00 | 6.00 | 18.00 |
27.00 | 13.00 | 26.00 |
30.00 | 1.00 | 20.00 |
32.00 | 1.00 | 32.00 |
34.00 | 1.00 | 26.00 |
36.00 | 1.00 | 30.00 |
38.00 | 2.00 | 36.00 |
Please answer this question:
What percent of the variance in recalls is uniquely accounted for by the number of symptoms scores?
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