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1. The state of Ohio conducted COVID19 tests on 62,739 people, and 9,266 tested positive.
(A. What is 𝑝̂ for the number who tested positive (round to the nearest hundredth of a percent)?
B. Based upon the testing results, of the 11.69 million people who live in Ohio, what is the best estimate for the number of people who would test positive for the virus?
C.  Are the testing results biased or not? Please support your position.

2. The results of a survey show that the percent of adults in a certain town who want to add bike lanes to a major roadway is in the interval (0.43, 0.66) 
(a) What is the point estimate for the percent who want to add the bike lanes?
(b) What is the poll’s margin of error? (c) If the town’s adult population is 342,321, what is the best estimate for the number of people who would support the bike lanes?

 
 May 10, 2022

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