In a survey of 445 registered voters, 131 of them wished to see Mayor Waffleskate lose her next election. The Waffleskate campaign claims that no more than 30% of registered
Voters wish to see her defeated. Does the 98% confidence interval for the proportion
Support this claim? (Hint: you should first construct the 98% confidence interval for the
Proportion of registered voters who whish to see Waffleskate defeated.)
(0)244, 0.345)
A) Yes
B) No
C) The reasonableness of the claim cannot be determined.

Question

Quizplus · Accepted Answer

The 98% confidence interval for the proportion of registered voters who wish to see Waffleskate defeated is (0.244, 0.345). Since the upper bound of the confidence interval (0.345) is greater than 0.30, we can conclude that the Waffleskate campaign's claim is not supported by the data.

In a Survey of 445 Registered Voters, 131 of Them