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Category > Math Posted 27 Aug 2017 My Price 5.00

A sample of 157 randomly selected students, found that the proportion of students planning to travel home for thanksgiving is 0.69.

(1) A sample of 157 randomly selected students, found that the proportion of students planning to travel home for thanksgiving is 0.69. What is the standard deviation of the sampling distribution? round to 3 decimals digits.

**please provide formula**

 

(2) A survey of 540 citizens found that 331 of them favor a new bill introduced by the city. We want to find a 95% confidence interval for the true proportion of the population who favor the bill. What is the lower limit of the interval? round to 3 decimal digits.

**please provide formula**

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Martinakom
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Status NEW Posted 27 Aug 2017 11:08 AM My Price 5.00

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