This Test: 1 Decide whather the normal sampling distribution can be useod. Ifit

Question

This Test: 1 Decide whather the normal sampling distribution can be useod. Ifit can be used, est the claim about the population proportion p at the given level of significance a using the gven sample stafisics Claim ps040, . 0.05: Sample statistics: p. 0.45, n= 100 Can the normal sampling distribution be used? OA. No, because np is less than 5. OB. ws, because both road nq are greater than or equal to 5. OC. Yes, because pa is greater than -005. O D. No, because nq is less than 5 State the null and altemative hypotheses OA. HO p.049 H p0.49 B. Ho-ps049 H p>0.49 O C. Ho p20.49 H p0.49

Explanation / Answer

Can the normal sampling be used ?

Option B) is correct

Null and alternate hypothesis

Option C) is correct

Critical value = -1.645

Z = (p^ - p)/sqrt(pq/n)

= (0.45 – 0.49)/sqrt(0.49 * 0.51 /100)

= -0.8001

Result

Option D) is correct

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