The height in inches of 8 high school girls and their scores on an IQ test is listed below. Height (x) IQ Score (y) 62 109 58 102 65 107 67 114 59 96 64 110 65 116 57 128 a) Calculate the sample correlation coefficient r. b) Calculate the regression line (write up the details). c) Use table 11 in Appendix B to make a conclusion about the correlation coefficient at α= 0.01
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The height in inches of 8 high school girls and their scores on an IQ test is listed below.
| Height (x) | IQ Score (y) |
| 62 | 109 |
| 58 | 102 |
| 65 | 107 |
| 67 | 114 |
| 59 | 96 |
| 64 | 110 |
| 65 | 116 |
| 57 | 128 |
a) Calculate the sample
b) Calculate the regression line (write up the details).
c) Use table 11 in Appendix B to make a conclusion about the correlation coefficient at α= 0.01
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- For a data set of brain volumes (cm3) and IQ scores of seven males, the linear correlation coefficient is r=0.807. Use the table available below to find the critical values of r. Based on a comparison of the linear correlation coefficient r and the critical values, what do you conclude about a linear correlation?For a data set of brain volumes (cm^3) and IQ scores of eight males, the linear correlation coefficient is r= 0.848. Use the table available below to find the criticle values of r. Based on comparison of the linear correlation coefficient r and the critical values, what do you conclude about a linear correlation?b.Find the linear correlation coefficient, r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables. c. find the critical values
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