Question 4 0/1 pts We are interested in learning about the proportion of student

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Question 4 0/1 pts We are interested in learning about the proportion of students who voted in the last presidential election. A statistix printout is shown below Hypothesis Test-One Proportion Sample Size 200 Successes Proportion 0.37500 75 Null Hypothesis: P 0.5 Alternative Hyp: P?0.5 Difference Standard Error 0.03423 Z (uncorrected) 3.54 P0.0004 Method 95% Confidence Interval Simple Asymptotic (0.30791, 0.44209) What assumptions) are needed for this analysis to be valid? 0.12500 Independent samples from all populations needed to be selected All of these assumptions are necessary A random sample of students needed to be selected

Explanation / Answer

Soln,

For the given data as for proportion of the students we need to take one important assumption. Accordingly with central limit theorem

Hence assumption made :

The students response needed to be approximately normally distribud.

A random sample of students is selected.

And All are selected from independent samples hence

All the assumptions are necessary

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