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From a survey of 200 coworkers you find that 68 would like the company to provide​...

From a survey of 200 coworkers you find that 68 would like the company to provide​ on-site day care.

​a) What is the value of the sample proportion p̂ ?

​b) What is the standard error of the sample​ proportion?

​c) Construct an approximate 95​% confidence interval for the true proportion p by taking plus or minus 2 SEs ±2 SEs

from the sample proportion.

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