Question

z-critical value: Based on your z-statistic and z-critical values, what can you conclude abot the researchers' claim that survey respondents, on average, are older than the general Bangladesh population for this survey region? The correct decision is to the null hypothesis that the average age of a survey respondent is equal to 29.8 years because there is evidence at the a = 0.01 level against this claim. Adapted from Raihan M. et al. Examining the relationship between socio-economic status, WASH practices and wasting. PloS one 2017 12(3). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5344309/ (Accessed April 28, 2017).

Answer 1

Dosuda 2590 Giun that Sample size H. 29.8 we ux R software to generate Jardin stample of size ne 2590 Here Sample mean M = 29,80121 under Ho, the test shishe is زاره )N z = not Oljn 7 0 4 474 S.EE 75 J2590 In and 0.00818 2 29:80/2) - 29.80 0:1474 --) ze 0.008 ची 1 = 29.801 SE 0.147 2 - 12 -0.008 2 critical at dorot 2.326 2-Stulistic is less than 2 citical at So our Ho is accept at d = o.ol at azorul 7 Ho is accept TCS Seanned with CamScanner

in Im (list=ls (all=TRUE)) >> m=c(z test=c() > for (i in 1:10478) + x=rnorm (2590, 29.8,7.5) + m[1] =nean (X) mean (m) [1] 29.80121 z test= (mean (m) -29.8)/ (7.5/sqrt (2590)) [1] 0.008181741 p value=l-pnom (Z test,0,1) > p value [1] 0.496736 OS Scanned with CamScanner