14) a random sample of 600 adults is taken from a population ofover one million,
ID: 2915448 • Letter: 1
Question
14) a random sample of 600 adults is taken from a population ofover one million, in order to compute a confidence interval for aproportion. if the researchers wanted to decrease the width of theconfidence interval, they could:
a. decrease the size of the population
b. decrease the size of the sample
c. increase the size of the population
d. increase the size of the sample
15) In aurvey of n=100 people, 10% are left-handed. Calculate the margin oferror for a 95% confidence interval.
a)0.03
b)0.05
c)0.06
d)0.10
Explanation / Answer
14) a random sample of 600 adults is taken from a population ofover one million, in order to compute a confidence interval for aproportion. if the researchers wanted to decrease the width of theconfidence interval, they could:
a. decrease the size of the population
b. decrease the size of the sample
c. increase the size of the population
d. increase the size of thesample
15) In a urveyof n=100 people, 10% are left-handed. Calculate the margin of errorfor a 95% confidence interval.
a)0.03
b)0.05
c)0.06
d)0.10
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