Originally Posted by

**Rugrats3**
This one is really confusing:

Information indicates the mean amount of life insurance per household is $110,000. This distribution is positively skewed. The standard deviation of the population is unknown.

a. A random sample of 50 households revealed a mean of $112,000 and a standard deviation of $40,000. What is the standard error of the mean?

b. Suppose you selected 50 samples of households. What is the expected shape of the distribution of the sample mean?

I still don't understand "what is the shape..." or how to find an answer with one part being an unknown. Please help!