The width of the confidence interval for a population proportion gets narrower (i.e., smaller) when O a. The sample size
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The width of the confidence interval for a population proportion gets narrower (i.e., smaller) when O a. The sample size
The width of the confidence interval for a population proportion gets narrower (i.e., smaller) when O a. The sample size increases (e.g., n increases from 50 to 100). O b. The confidence level increases (e.g.. 90% to 95%). Oc. Both (a) and (b). O d. Neither (a) nor (b).
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