NOTE: Round all answers to the THIRD decimal (e.g. 9.1439 becomes 9.144). For assistance, The total sum of squares should sum to 14.233 and the total degrees of freedom should sum to 14. Mean Square Between (MSB) F Critical Value F statistic Degrees of Freedom Within (dfW) Mean Square Within (MSW) Sum Squares Within (SSW) Degrees of Freedom Between (dfB) Sum Squares Between (SSB) > > >

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. 1,080,000- 780,000 MRI 130 145 (a) Draw a scatter diagram treating MRI count as the explanatory variable and IQ as the response variable. Choose the correct diagram below. OA. Q Q OB. AMRI 1,080,000- 780,000 130 IQ 145 COLO Q Q SCIER O C. AIQ 145+ 130 780,000 Females MRI IQ 866,662 130 857,782 133 MRI IQ 935,494 141 1,079,550 141 852,244 132 1,001,121 140 951,545 137 955,466 133 790,619 135 1,038,438 139 MRI Males 1,080,000 C D. 145 AIQ 130- 780,000 MRI 1,080,000 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…

A survey of 200 senior citizens was undertaken and it was found that 26 of them had the flu vaccine this year. Do these data suggest that the proportion of senior citizens who get the flu vaccine is significantly less than 21 % ? Test at a = 0.10. Round your answers to three decimal places, and round any interim calculations to four decimal places. What is the test statistic? -2.7778 Using your answer from the previous question, find the p-value. .0027 What is the critical value for this test? Part 2 of 3

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