Males Researchers wondered whether the suze of a person\'s brain was related to
ID: 3180596 • Letter: M
Question
Males Researchers wondered whether the suze of a person's brain was related to the Females mental capacity They selected a sample of 5 females and 5 males MRIllllllllo and measured their MRI image pixel counts and lQ scores The data is reported 816,932 133 935,494 141 137 924 059 135 to the right. Complete parts (a) through (d) below. 951 545 1,079,550 141 852,244 EEa click the icon to view the critical values table. 790 619 135 1038 438 139 305 138 849 395 140 (a) Draw a scatter diagram treating MRI count as the explanatory variable and IQ as the response vanable choose the correct diagram below O C. O B. 1.000.000 (b) Compute the linear correlation coefficient between MRI cou and la Are MRI count and IQ lineady related? Select the choice below and it nocessary correct fill in the answer box to complete your choice (Round to three decimal places as needed) O A. No, MRI count and IQ are not nearly related since the linear correlation coefficient is O B. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is (c) Draw a scatter diagram, but use a different ploting symbol for each gender Choose the correct diagram below Click to select your answer(s).Explanation / Answer
a) Correct Answer: Option (D)
b) Correct Answer: Option (B) Yes, MRI Count and IQ are linearly related, Correlation coefficient is 0.772
c)Correct Answer: Option (D)
d) MRI Count and IQ for female are linearly related, Correlation coefficient is 0.774
MRI Count and IQ for male are linearly related, Correlation coefficient is 0.431
Yes
e) Correlation coefficient for female is 0.774, the absolute value of this correlation coefficient is 0.774, is less than 0.997 critical vlaue. The non linear relation exist for female.
Because the correlation coefficient for male is 0.431 the absolute value of this correlation coefficient is 0.431, is less than 0.997 critical vlaue. The non linear relation exist for male.
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