Question

Problems 1. Sampling (Chapter 2), Problem 2.67, Page 53: 2.67 Below are 64 names of employees at NilCo. Colors denote different departments (finance, mar- keting, purchasing, engineering). Sample eight names from the display shown by using (a) simple random sampling, (b) systematic sampling, and (e) cluster sampling. Try to ensure that every name has an equal chance of being picked. Which sampling method seems most appropriate? Pick Eight Floyd Nathan Lou Loretta Anne Don Graham Bernie Sid Ginnie Tim Erik Joel Gadis Scott Karen LaDonna Mario Peter Jackie Moira Tom Claudia Jean Juanita Marnie Mabel Dmitri Mike Molly Ted Takisha Jody Erika Nicholas Kevin Jeremy Carl Greg Dan Brian Marge Bonnie Blythe Chad Buck Duane Ryan Tania Gene Deepak Dave Doug Janet Amanda Sam Ralph Pam Balaj Vince Lorin Ed Assume the finance department is in orange, marketing is yellow, purchasing is green, and engineering is blue.

Answer 1

Let to take sample q size 8 we number the every name.like followns, 1 9 - .S. 97 58 1976 648X8. y simple Random Sampling Wegenerale a random number from 1 to 64 å size 8. and then we select a name which is assigned that number we get random numbers . . 8,427 36 7:5, 64, 4.0, 20, 16 Bernie, Kelvin Molly, Anne, Pam, Erika, Jackie, karen. 23 Systematic sampling: - sinch.we select .a 5 Ph sumple grom. the intervalg 8 with serialy numbeid namest. samples are, Anne, Joel, Moira, Marnie, ted, Greg, Duanen Amanda. 85 etaster sampling we पोय the name with and then two clusters are selected of sample obsava honie names in both cleyterar a samples Gluster 1: pon; Giadis, Joel, Anne thester2: Nicholas; Bonnie, -keving Blythe Stratified sampling is most apropnaefe but in . il ghove methods systemcetic is betterone