Posted by **Joyann** on Wednesday, October 26, 2011 at 12:34pm.

A survey organization takes a simple random sample of 625 households from a city of 80,000 households. On the average, there are 2.30 persons per sample household, and the SD is 1.75. Say whether each of the following statements are True or false and explain

(a) The SE for the sample average is 0.07

(b) A 95% confidence interval for the average household size in the sample is 2.16 to 2.44

(c)A 95% confidence interval for the average household size in the city is 2.16 to 2.44

(d)A 95% confidence interval of the household size in the city contain btwn 2.16 to 2.44

persons

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