The Average number of times Americans dine out in a week fell from 1.0 in 2008 to 3.8 in 2012 (Zagat.com, April 2012). The number of times a sample of 20 families dined out last week provides the following data.
6 1 5 3 7 3 0 3 1 3
4 1 2 4 1 0 5 6 3 1
- Compute the mean and median.
- Compute the first and third quartiles.
- Compute the range and interquartile range.
- Compute the variance and standard deviation.
- The skewness measure for these data is 0.34. Comment on the shape of the distribution. Is it the shape you would expect? Why or why not?
- Do the data contain outliers?