Question: Sample proportions from two random sample of sizes 12 and 10 denoted by p 1 =0.6 and p 2 =0.38 For testing H 0 :

Sample proportions from two random sample of sizes 12 and 10 denoted by p1=0.6 and p2=0.38

For testing H0:1=2(say ) vs H1: 12using =0.05, p1and p2are pooled to create a singlevaluethat gives ZSTAT=1.03. The following statement (s) for testing H0is/are true

a.ZSTATwill be valid and efficient test statistic

b. H0is accepted because ZSTAT< Z/2from normal distribution table.

c.is unbiased estimate for under H0.

d. All of statements in a, b, c are true

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