Multiple Choice
Exhibit 16.5 A researcher wished to estimate the proportion of all families who go to the movies at least once a month.He wished the estimate to be accurate within plus or minus 4 percentage points and further desired a 95 percent confidence interval (z = 2) around the result.Additionally,he estimates the population proportion as 0.30.
Refer to Exhibit 16.5.Suppose that a 99 percent confidence interval (z = 3) were desired.The required sample size is
A) 54.
B) 450.
C) 1381.
D) 1181.
E) 1000.
Correct Answer:
Verified
Correct Answer:
Verified
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