Question
(a) What sample size would be required to estimate the true proportion of American female business executives who prefer the title "Ms.", with an error of $\pm$ 0.025 and 98 percent confidence? (b) What sampling method would you recommend? Explain.
Step 1
The margin of error E is given as 0.025. The confidence level is 98%, which corresponds to a z-score (Z) that we can find from the standard normal distribution table or a z-score calculator. For a 98% confidence level, the z-score is approximately 2.33. Show more…
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