SOLUTION: In a sample of 40 mice, a biologist found that 42% were able to run a maze in 30 seconds or less. Find the 90% limit for the population proportion of mice who can run a maze in 30

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Question 1086258: In a sample of 40 mice, a biologist found that 42% were able to run a maze in 30 seconds or less. Find the 90% limit for the population proportion of mice who can run a maze in 30 seconds or less.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
In a sample of 40 mice, a biologist found that 42% were able to run a maze in 30 seconds or less. Find the 90% limit for the population proportion of mice who can run a maze in 30 seconds or less.
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sample proportion:: 0.42
ME:: 1.645*sqrt(0.42*0.58/40) = 0.128
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90%CI:: 0.42-0.128 < p < 0.42+0.128
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Cheers,
Stan H.
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