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SCAN0003 - 67 é0° Stat 3130 7 0 Homework 2 1 The null...

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Unformatted text preview: 67: é0° February 18, 2010 Stat 3130 7 0 Homework 2 1. The null hypothesis is there is not a difference in median of systolic blood pressure reading based on the type of appointment. The alternative hypothesis is there is a difference in median of systolic blood pressure reading based on the type of appointment. Because the p-value is greater than 0.05, we fail to reject the null hypothesis and conclude that there is not enough evid ce to claim that there is a difference in median of systolic blood pressure reayggased on the type of appointment at a 01 = .05 level, n=12, p=0.117. Table1 Difference4 4 |5 ‘6 8 9 12 12 14 I14 16 +24 Rank 1.5 1.5 3 4 5 5/75 7.5 9.5 |9.5 11 12 Tstat ‘ 59.5 Wilcoxon Signed Rank Test: Difference ﬂ Test of median = 0.000000 versus median not : 0.000000 /L{ N for Wilcoxon Estimated N Test Statistic P Median Difference 12 12 59.5 0.117 7.000 2. The box plot of men and women shows the mph between males and females. The mph among male drivers is higher than that of female drivers. The null hypothesis is there is not a median difference in mph between male and females (Ho: n=no). The alternative hypothesis is there is a median difference in mph between male is greater than females. Because the p value is less than 0.05, we reject the null hypothesis and conclude they is a difference median mph between male and females at a or = .05 level, p=0.0347. Table2 Se F‘lFM1FFMM‘FTFMMF FerMMiFMFMMMMM X VM557788888999999911111L1111 1p 05005570025555000112223 1h 055000050 R123446689911111111112222 a . 13.33.367.7.9.9.1.1.34 n 5555 555555 555555 k} L_ T20 36 15 a t__ ...
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