In a poll,1,004 adults in a certain country were asked whether they favor or opp

Question

In a poll,1,004 adults in a certain country were asked whether they favor or oppose the use of "federal tax dollars to fund medical research using stem cells obtained from humanembryos." Based on the poll results, it is estimated that 45% of adults are in favor, with a margin of error of 4 percentage points. Use the given statistic and margin of error to identify the range of values (confidence interval) likely to contain the true value of the population parameter.

The range of values likely to contain the population parameter is from ____ % to ____%.

(Simplify your answer. Use ascending order.)

Explanation / Answer

Confidence interval is (mean - margin of error , mean + margin of error)

=(45 -4 , 45+4)

=(41 % ,49% )

The range of values likely to contain the population parameter is from 41 % to 49 %.

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