According to the sectoral shifts hypothesis:. a. frictional unemployment will cause workers to extend their temporary lay-offs.
b. most unemployed workers will return to their previous job because the firm knows the skills of the worker.
c. there will always be a pool of unemployed workers who experience spells of unemployment because they do not aggressively search for work cyclical unemployment will always exceed frictional unemployment.
d. there will be always be some level of unemployment because the skills of the workers do not match the skill requirements of employers.

The wall street journal reported that walmart stores inc. is planning to lay off 2,300 employees at its sam's club warehouse unit. approximately half of the layoffs will be hourly employees (the wall street journal, january 25-26, 2014). suppose the following data represent the percentage of hourly employees laid off for 15 sam's club stores. 55 56 44 43 44 56 60 62 57 45 36 38 50 69 65 (a) compute the mean and median percentage of hourly employees being laid off at these stores. (b) compute the first and third quartiles. (c) compute the range and interquartile range. (d) compute the variance and standard deviation. (e) do the data contain any outliers? (f) based on the sample data, does it appear that walmart is meeting its goal for reducing the number of hourly employees?