Assignment # 6 Directions: Solve the following problems and answer the following
ID: 2947782 • Letter: A
Question
Assignment # 6
Directions: Solve the following problems and answer the following questions. Document, justify or otherwise explain any calculations and computations. Even if working as a group, each group member must still submit her or his own copy of the solutions as documentation. Using appropriate technology is encouraged when appropriate; however, such work must be fully documented or explained. Software printouts or spreadsheet copies should include your name within the text so to verify the work as your own. Your work must be submitted electronically here through this ASSIGNMENT function within BLACKBOARD, right where you obtained this file. Follow the prompts. You should include this cover sheet, plus your actual solutions, answers and/or graphs.
#1: Hannah Romano, Associate Director of Human Resources at St. Linus Junior College, is reviewing the hours worked by all senior administrative assistants on campus the first full week of the term. Consider the following data as a small population since it accounts for all staff members in this job category at the institution:
40
36
40
40
40
44
40
40
40
40
44
40
40
40
36
40
(a) Compute the population standard deviation for this sample data. [COMMENTS & HINTS: A computational table is expected for full credit. Feel free to utilize software or a calculator to confirm or check your answer.]
(b) Compute or report the population variance. [COMMENTS & HINTS: Again, feel free to utilize software or a calculator to confirm or check your answer. This measure is determined as part of the standard deviation computations, correct?]
(c) Complete the following reasonable conclusion about the hours worked by all senior administrative assistants on campus: “On average, the number of hours worked during a given week by all the senior administrative assistants on campus at St. Linus Junior College was ___ hours, give or take ___ hours.” [COMMENTS & HINTS: Rewrite the complete sentence.]
(d) Measure the effect size by reporting the coefficient of variation, expressed in percentage form. [COMMENTS & HINTS: There should be no need to round, agreed?]
Explanation / Answer
(a) population standard deviaion=2
(b)population variance=4
(c) On average, the number of hours worked during a given week by all the senior administrative assistants on campus at St. Linus Junior College was 40 hours,
(d) coefficient of variaion (in %)=100*sd/mean=100*2/40=5%
using ms-excel following information has been generated
mean= 40 using ms-excel=average() sd= 2 using ms-excel=stdp() var= 4 using ms-excel=varp()