The table below shows the results of a survey
Question
The table below shows the results of a survey in
which 400 adults from the East, 400 adults from the South, 400 adults from the Midwest, and 400
adults from the West were asked if traffic congestion is a serious problem. Complete parts (a) and (b).
Adults who say that traffic congestion is a serious problem
East 37%
South 33%
Midwest 25%
West 54%
A) Construct a 99% confidence interval for the proportion of adults from the East who say traffic congestion is a serious problem.
The 99% confidence interval for the proportion of adults from the East who say traffic congestion is a serious problem is____
B)Construct a 99% confidence interval for the proportion of adults from the South who say traffic congestion is a serious problem.
The 99% confidence interval for the proportion of adults from the South who say traffic congestion is a serious problem is____
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