Question
In: Math
Use the data to assess the correlation between hours studying per week in High School and...
Use the data to assess the correlation between hours studying per week in High School and SAT score. Interpret the result and give the conclusion.
| High School hours per week | SAT Score |
| 15 | 1500 |
| 10 | 1250 |
| 2 | 850 |
| 11 | 1350 |
| 0 | 780 |
| 5 | 810 |
| 6 | 900 |
| 10 | 1100 |
| 16 | 1450 |
| 2 | 810 |
Solutions
Expert Solution
High school HOCHS per week SAT score 15 1500 1500 185 2250000 100 1700 14850 121 1250 830 1350 1 780 810 goo O 4050 25 15 62500 722500 1822500 608 400 G-6100 810000 12 1000 21000 G 56100 540026 10 16 1100 11000 100 1450 2200 206 81016204 10800 96820 871 2 124 00 600 Sum s sxy = Eziyi - (Exi) Eyi) = 96820 - to (77X10800) = 13660 Ssxx = Exi? - Yn ceri)? = 871- %10C77)? = sorr = 2y; 2 - 0 (I yi) ? - 12900600 - Le Clo800)' 278:1 = 736600 corelation coefficient r = ssxy Sser Ssry - 13660 /278.IX 736000 = 0.954
two variables SAT Score are Here rao.954 Hence, the High school hours per Careek op strongly related :
milcah answered 2 years agoRelated Solutions
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sample of 10 students. The following table lists the hypothetical
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answer to three decimal places.)
(b) Compute the coefficient of determination. (Round your...
A researcher measures the relationship between Internet use (hours per week) and social interaction (hours per...
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(hours per week) and social interaction (hours per week) in a
sample of 10 students. The following table lists the hypothetical
results of this study.
Internet
Use
Social
Interaction
X
Y
6
5
7
5
4
7
8
7
13
5
4
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Social
Interaction
X
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5
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6
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6
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2
11
12
3
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