- Researchers Wondered Whether The Size Of A Person S Brain Was Related To The Individual S Mental Capacity They Selected 1 (193.36 KiB) Viewed 27 times
Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. The data is reported to the right. Complete parts (a) through (d) below. Click the icon to view the critical values table. O A. AIQ (a) Draw a scatter diagram treating MRI count as the explanatory variable and IQ as the response variable. Choose the correct diagram below. 145- 130 780,000 MRI 1,080,000 Q 2 O B. AIQ 145- 130 780,000 MRI 1,080,000 ✔ O C. Females MRI IQ MRI IQ 951,545 137 816,932 133 1,079,550 141 955,466 133 833,868 132 955,003 139 790,619 135 1,038,438 139 866,662 130 965,353 133 1,080,000 AMRI 780,000+ 130 IQ 145 Males Q 2 D. 1,080,000 AMRI 780,000- 130 IQ 145 Q (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is B. No, MRI count and IQ are not linearly related since the linear correlation coefficient is