nts aiong its 366 senlor managers, Meanwnile Major League Baseball had only 1 bl
ID: 3327777 • Letter: N
Question
nts aiong its 366 senlor managers, Meanwnile Major League Baseball had only 1 blacks among its 307 top administrators. Test at the .05 significance level if this reveals the NBA has significantly more black participation in higher levels of management. 37, The owner of Bun 'N' Run Hamburgers wishes to compare the sales per day at two loca- tions. The mean number sold for 10 randomly selected days at the Northside site was 83.55, and the standard deviation was 10.50. For a random sample of 12 days at the Southside location, the mean number sold was 78.80 and the standard deviation was 14.25. At the .05 significance level, is there a difference in the mean number of ham- burgers sold at the two locations? What is the p-value? 38 mi Medical Contois specifically set up to treatnedical emer-Explanation / Answer
H0: N = S
Ha: N S
SE = sqrt[ (sN2/nN) + (sS2/nS) ] = 5.286480
DF = (sN2/nN + sS2/nS)2 / { [ (sN2 / nN)2 / (nN - 1) ] + [ (sS2 / nS)2 / (nS - 1) ] } = 19.7541 = 20
t = (83.55 - 78.8) / 5.286480 = 0.8985
p-value = 0.38
Fail to reject null hypothesis and there is sufficient evidence to suggest there is difference in the mean number of hmburgers sold at the two locations
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