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In a sample of 55 mice, a biologist found that 42% were able to run a maze in 30 second or less. Find the 90% limit for the population proportion of mice who can run a maze in 30 second or less.

Possible answers:

a) 36.8% < p < 47.5%

b) 33.5% < p < 50.5%

c) 31.0% < p < 53.0%

d) 25.5% < p < 58.5%

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