In what follows use any of the following tests procedures Regression, confidence intervals, one sided t test, or two sided t test All the procedures should be done with 5 P value or 95 confidence interval Open Braindata Claim Male and female subjects have different IQ scores 9 What test procedure did you perform a One sided t test b Two sided t test c Regression d Confidence interval 10 What is the P value margin of error a 0 16487001 b 5 05202E 09 c 0 435460528 d 0 870921057 e None of these 11 Statistical interpretation a Since P value is too large we cannot conclude that the two variables have different averages b The 95 confidence interval does not contain the averages c Since P value is too large we cannot claim that there is connection between two variables d Since P value is small we can claim that there is connection between two variables e None of these 12 Conclusion a Yes, I am confident that the average IQ's are different b No, I cannot claim that the average IQ's are different CCMIDSA Corpus Collasum Surface Area (cm2) FIQ Full Scale IQ HC Head Circumference (cm) ORDER Birth Order PAIR Pair ID (Genotype) SEX Sex (1 Male 2 Female) TOTSA Total Surface Area (cm2) TOTVOL Total Brain Volume (cm3) WEIGHT Body Weight (kg) 8 42 96 57 2 1806 31 1079 61 236 7 44 88 57 2 2018 92 1104 79 38 6 84 85 57 2 2154 67 1439 99 792 6 48 97 57 2 1767 56 1029 81 648 6 43 124 58 5 1971 63 1160 72 576 7 62 101 57 2 10 1689 6 1173 61 236 6 03 93 57 2 2136 37 1067 83 916 6 59 94 65 8 1966 81 1347 97 524 7 52 114 56 5 1827 92 1100 88 452 7 67 113 59 2 1773 83 1204 79 38 6 08 96 54 7 1913 88 1005 57 607 5 73 87 53 1902 36 1035 64 184 6 22 101 57 8 2264 25 1281 63 958 5 8 103 56 6 1866 99 1051 133 358 7 99 127 53 1 1743 04 1034 62 143 7 99 89 54 2 1684 89 963 58 968 8 76 87 52 9 1860 24 1027 58 514 6 32 103 56 9 2216 4 1272 61 69 6 32 96 55 3 1850 64 1079 107 503 7 6 126 54 8 NNNNNPPPPPNNNNNPPPP NNNNNNNNNNPPPPPPPPPF 1709 3 1070 83 009

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In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5%

In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval.

OpenBraindata. Claim: Male and female subjects have different IQ scores.

9. What test/procedure did you perform?

a. One-sided t-test
b. Two-sided t-test
c. Regression
d. ??Confidence interval

10. What is the P-value/margin of error?

a. 0.16487001
b. 5.05202E-09
c. 0.435460528
d. 0.870921057
e. ??None of these

11. Statistical interpretation

a. Since P-value is too large we cannot conclude that the two variables have different averages.
b. The 95% confidence interval does not contain the averages.
c. Since P-value is too large we cannot claim that there is connection between two variables.
d. Since P-value is small we can claim that there is connection between two variables.
e. None of these

12. Conclusion

a. Yes, I am confident that the average IQ's are different.
b. No, I cannot claim that the average IQ's are different.

CCMIDSA: Corpus Collasum Surface Area (cm2) FIQ: Full-Scale IQ HC: Head Circumference (cm) ORDER: Birth Order PAIR: Pair ID (Genotype) SEX: Sex (1=Male 2=Female) TOTSA: Total Surface Area (cm2) TOTVOL: Total Brain Volume (cm3) WEIGHT: Body Weight (kg) 8. 42 96 57 .2 1806. 31 1079 61.236 7.44 88 57.2 2018.92 1104 79.38 6.84 85 57.2 2154 .67 1439 99 . 792 6.48 97 57.2 1767 .56 1029 81.648 6.43 124 58.5 1971. 63 1160 72.576 7.62 101 57.2 10 1689.6 1173 61. 236 6.03 93 57.2 2136.37 1067 83. 916 6.59 94 65.8 1966 .81 1347 97 .524 7.52 114 56.5 1827.92 1100 88 . 452 7.67 113 59.2 1773.83 1204 79.38 6.08 96 54.7 1913. 88 1005 57.607 5.73 87 53 1902 .36 1035 64. 184 6.22 101 57 .8 2264.25 1281 63.958 5.8 103 56.6 1866.99 1051 133. 358 7.99 127 53.1 1743 . 04 1034 62.143 7.99 89 54.2 1684 . 89 963 58. 968 8. 76 87 52.9 1860.24 1027 58 . 514 6.32 103 56.9 2216.4 1272 61.69 6.32 96 55 . 3 1850.64 1079 107.503 7.6 126 54.8 NNNNNPPPPPNNNNNPPPP NNNNNNNNNNPPPPPPPPPF 1709.3 1070 83. 009