Standard error of the sample proportion

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From a survey of 250 coworkers you find that 155 would like the company to provide on-site day care.

a. What is the value of the sample proportion ˆp?p^?

b. What is the standard error of the sample proportion?

c. Construct an approximate 95% confidence interval for the true proportion p by taking ±2±2 SEs from the sample proportion.

Reference no: EM131745649

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