# Question: The weights of all people living in a particular town

The weights of all people living in a particular town have a distribution that is skewed to the right with a mean of 133 pounds and a standard deviation of 24 pounds. Let be the mean weight of a random sample of 45 persons selected from this town. Find the mean and standard deviation of and comment on the shape of its sampling distribution.

## Answer to relevant Questions

According to an estimate, the average age at first marriage for men in the United States was 28.2 years in 2010 (Time, March 21, 2011). Suppose that currently the mean age for all U.S. men at the time of first marriage is ...If all possible samples of the same (large) size are selected from a population, what percentage of all the sample means will be within 1.5 standard deviations (σ) of the population mean? According to Moebs Services Inc., an individual checking account at U.S. community banks costs these banks between $175 and $200 per year (Time, November 21, 2011). Suppose that the average annual cost of all such checking ...The amounts of electricity bills for all households in a city have a skewed probability distribution with a mean of $140 and a standard deviation of $30. Find the probability that the mean amount of electric bills for a ...A population of N = 4000 has a population proportion equal to .12. In each of the following cases, which formula will you use to calculate σp̂ and why? Using the appropriate formula, calculate σp̂ for each of these ...Post your question