QUESTION 8 When the necessary conditions are met, a two-tailed test is beiung co

Question

QUESTION 8 When the necessary conditions are met, a two-tailed test is beiung conductod to test the difference between two population proportions. The two sample proportions are plhat-0052 and p2hat-0 023 and the standard error of the O True sampling distribution of pl-p? is 00085. The calculated value of the test statistic will be z 3.41 O False QUESTION 9 A presidential candida le believes ti at 58% of the votes are supporting hunt lis opponet bclic es tus cstanare u to high. State the appropriate null and alternative hypotheses tu br tested by the opponent O D.HO: p-0.5a vs. Ha: p058

Explanation / Answer

Q9) p1 =0.052;p2 =0.023
SE =0.0085
z = (p1-p2)/SE
z.alpha = qnorm(0.05/2,lower.tail = false)

True

Q9) based on proportions

p =0.58

H_0: p=0.58 vs H_a: p < o.58 # opponent think its actual estimation is less than 0.58.

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