Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 122 with 69.7% successes at a confidence level of 99.8%. M.E. = % Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Round final answer to one decimal place
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8% confidence level. Using a standard normal distribution table or a z-score calculator, we find that z* is approximately 2.878. Show more…
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