Ross thinks that the weight of a person can tell you how smart they are. To find out Ross gathered some data and got the following (partial) output from SPSS. Test if Ross is correct. Simple linear regression results: Dependent Variable: IQ Independent Variable: Weight IQ = 106.7673 + 0.541626 Weight Sample size: 24 R (correlation coefficient) = 0.2337 R-sq = 0.0546 Estimate of error
Ross thinks that the weight of a person can tell you how smart they are. To find out Ross gathered some data and got the following (partial) output from SPSS. Test if Ross is correct. Simple linear regression results: Dependent Variable: IQ Independent Variable: Weight IQ = 106.7673 + 0.541626 Weight Sample size: 24 R (correlation coefficient) = 0.2337 R-sq = 0.0546 Estimate of error
Chapter4: Linear Functions
Section: Chapter Questions
Problem 30PT: For the following exercises, use Table 4 which shows the percent of unemployed persons 25 years or...
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Ross thinks that the weight of a person can tell you how smart they are. To find out Ross gathered some data and got the following (partial) output from SPSS. Test if Ross is correct.
Simple linear regression results:
Dependent Variable: IQ
Independent Variable: Weight
IQ = 106.7673 + 0.541626 Weight
Sample size: 24
R (
R-sq = 0.0546
Estimate of error standard deviation: 5.35043
Parameter estimates:
Parameter | Estimate | Std. Err. |
Intercept | 106.7673 | 34.2313 |
Slope | 0.541626 | 0.480591 |
Analysis of variance table
Source | DF | SS | MS |
Model | 1 | 36.36 | 36.36 |
Error | 22 | 629.796 | 28.6271 |
Total | 23 | 666.156 |
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