Week 2

10.30 A. hypotheses. Ho: p (red) p (yellow) > 0 Ha: p (red) p (yellow) is not greater than 0 B. initiative Decision One tail w/ alpha =1% precise grade is z = 2.326 C. meet proportions and z statistic. p cod (red) = 20/153,348 ; p palpebra (yellow) = 4/135,035 For Pooling: p relegateber = (20+4) / (153348+135035) = 0.00002.08 z = [(20/153,348) - (4/135,035)] / sqrt [(0.00002.08)(0.999979) / 153348 + (0.00002.08)*0.999979/135035)] = 2.960988... D. 2nd Decision sightedness as test statistic is more than ill-tempered harbor, winnow out Ho E. p - value and interpret it. p - value = P(2.960988 < z < 10) = 0.00153 0.1533% run across that the test has stronger attest against Ho. F. If statistically pregnant, do you think the paper bag is large enough to be important? If so, to whom, and why? Yes it is statistically crucial; yellow create has reduced accidents. G. Is the normality shot fulfilled? Explain. Yes: p1n1 > 5, q1n1 > 5 ; p2n2 > 5, p2n2 > 5 10.44 A. Hypotheses. Ho: p(inactive) - P(active) = 0 Ha: p(inactive) - p(active) > 0 p-hat(inactive) = 97 / 2081 = 0.0466 p-hat(active) = 57 / 2325 = 0.0245 Pool the data you lounge about p - draw a blank = (97 + 57) / (2081 + 2325) = 0.0350 and q - block up = 1 p - bar = 0.9650 alpha = 1%, captious value z = 2.326 B.

visitation statistic and p-value. z(0.0466 - 0.0245) = 0.0221 / sqrt [(0.035 * 0.965 / 2081) + (0.035 * 0.965 / 2325)] 3.9849, p-value - 0.0000338 Interpret the results at alpha = .01 Where the p-value is less than alpha you should reject Ho; there is significant evidence that the use of this euphony reduces the number of deaths. C. Is normality cognizant? 2081 * 0.035 = 72.84 > 5 and 2081 * 0.965 > 5 2325 * 0.035 = 70.86 > 5 and 2325 * 0.965 > 5 D. Is the end large enough to be important? p-value has strong evidence that Ha is true. E. What else would medical researchers deprivation to know before prescribing this do drugs widely? It could be the contrast in family history and...If you call for to get a practiced essay, order it on our website: Ordercustompaper.com

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