Tuesday

March 3, 2015

March 3, 2015

Posted by **Elie** on Wednesday, March 16, 2011 at 2:53am.

a) the bias, if any, which is present in the sampling method

b)the true population average commute distance

c)simple random sample

d)the sampling distribution of the sample mean

I chose choice "d" but I was torn between that and choice "b"

2)The average age of residents in a large residential retirement community is 69 years with standard deviation 5.8 years. A simple random sample of 100 residents is to be selected, and the sample mean age of these residents is to be computed.

We know the random variable has approximately a normal distribution because of

Choose one answer.

a. the central limit theorem.

b. the law of large numbers.

c. the 68–95–99.7 rule.

d. the population we're sampling from has a Normal distribution.

I chose choice "a"

**Answer this Question**

**Related Questions**

Math--Statistics - I have a couple of questions that need review--I've answered ...

statistics - According to the Census Bureau's 2002 American Community Survey, ...

statistics - According to the Census Bureau's 2002 American Community Survey, ...

statistics - If the average commute time is 10.9 miles, but the average is ...

statistics - given mean distance of 16 miles standard deviation of 8 miles with...

Statistics - 18 workers at a large assembly plant were asked the time it took to...

AP Stats (math) - A large metropolitan area found that the time it takes for ...

Statistics - A firm has 82 employees. The average commute distance (that is, the...

statistics - The average one-way commute time for a random sample of 256 area ...

statystics - : Human Resources took a survey and found that the average commute ...