$\text { Find the required sample size without making a guess for the observed value of } \hat { p } \text {. }$

question 80

Multiple Choice

$\text { Find the required sample size without making a guess for the observed value of } \hat { p } \text {. }$
-A researcher wishes to estimate the proportion of all drivers who exceed the speed limit on a certain stretch of road where accidents frequently happen. Obtain a sample size that will ensure a
Margin of error of at most 0.021 for a 98% confidence interval.

• A)65
• B)3078
• C)28
• D)1321

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