The Great Pyramid of King Khufu was built of limestone in Egypt over a 20-year time period from 2580 bc to 2560 bc. Its base is a square with side length 756 ft and its height when built was 481 ft. (It was the tallest manmade structure in the world for more than 3800 years.) The density of the limestone is about 150 lbyft3 . (a) Estimate the total work done in building the pyramid. (b) If each laborer worked 10 hours a day for 20 years, for 340 days a year, and did 200 ft-lbyh of work in lifting the limestone blocks into place, about how many laborers were needed to construct the pyramid?
Selecting Depends on accurate and effective planning, analyzing and recruiting. Involves choosing the best candidate(s) from the group that has been recruited. Selection techniques must be valid. Differentiate between successful and less successful (predictive validity). This allows them to stand up to any potential legal challenge as to their fairness. Realistic job preview gives a candidate a picture of both the positive and negative features of the job and the organization before he is hired Interviews o The most widely used selection technique o There are two basic types of interviews Unstructured interviews An unstandardized set of questions that vary from candidate to candidate