The wall street journal reported that Walmart store Inc. is planning to lay off 2300 employees at its Sam's Club warehouse unit. Approximately half of the layoffs will be hourly employees. Suppose the following data represents the percentage of hourly employees being laid off for 12 Sam's club the stores:

96, 50, 45, 40, 45, 55, 60, 65, 77, 98, 36, 38

1. Compute the mean and median percentage of hourly employees being laid off at these stores.

1. Compute the first and third quartile.

1. Compute the range and interquartile range.

1. Compute the variance and standard deviation (show your works).

1. Do the data contain any outliers?