Question

construct a confidence interval:

Construct a confidence interval for Pi-P2 at the given level of confidence x = 27.-253. x2 40,12 - 321, 95% confidence The researchers are confident the difference between the two population proportions. Pr - P2, is between and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed)

Answer 1

construct a confidence interval for P-P significance. at the given level of 40 H na = 321 ni = 253, 2. = 27, ar da 95% confidence 구 sample proportion for t. 2 *> el n 253 P, - 0.1067

* sample proportion for 2 = 22 na 40 321 sed 0.1246 = :. (P.-P2) = (c8, -22) + 2212 * JE PN (1-P) (a-u + 12 ni no where 2012 critical value Q = 0.05 z 20.05 = -cfom table) + 1.96

upper limit SEQ.0 lower limit= oto.e- (580.0 'oto.o-] = [Ebesteaio C-0.0703093 (Ebon2500 F 6710.0-) = ((n b[E920.0 * 96-1) F 6710.0-) = - + 0.000339 0.000376 =(-0.0179 † 1.96* IZE + Inst&.0 % 9h21.0) Esz (CE68.0 * +991.0)) #96.1] F (9h21:0-1991:0)) =

*> the researchers are 95% confident the difference between the too population proportions between -0.070 4 0.035 (P, -P2) is zeso value benie (*} Interval include null or it is not significant)