Out of a random sample of 200 youth, 50 are found to be careless drivers. Out...
Out of a random sample of 200 youth, 50 are found to be careless drivers. Out of a random sample of 400
adults, 64 are found to be careless drivers.
a. Determine, at a 1% significance level, if there is good evidence that the proportion of youth
who are careless drivers is different than the proportion of adults who are careless drivers
b. Form a 99% confidence interval for the difference in proportion of youth and adults who are careless
drivers. Be sure to compare with your results in part a.
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Out of a random sample of 200 youth, 50 are found to be careless
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