A health information systems company plans to design, market, and implement an information system that caters specifically to nephrology practices and interfaces with dialysis clinics, so that the physician's role in patient care can be proactive across the care continuum. Activities and their optimistic, pessimistic, and most likely activity durations in hours are shown in Table below. Optimistic Most Likely Pessimistic Activity Predecessor Activity Time Time Time A 65 157.5 250 B A 590 940 1290 C A 690 990 1290 D A 390 590 790 A. 190 390 590 F A. 8 29 50 A. 590 740 890 H A 1090 1690 2290 A 390 590 790 190 390 590 K B 2090 3690 5290 L K 1090 3190 5290 M I 390 590 790 190 340 490 590 50 N 390 790 C,D,E,F,G,H,L,M,0 40 60 L,P 60 150 240 a) Calculate the mean duration for each activity. b) Calculate the variance for each activity time. c) Draw the activity on node diagram.

Government funding: The following table presents the budget (in millions of dollars) for selected organizations that received U.S. government funding for arts and culture in both 2004 and 2006, Use a TI-84 calculator to answer the following. Organization 2004 2006 National Endowment for Arts 121 124 National Gallery of Art 88 95 Kennedy Center for the Performing Arts 18 Commission of Fine Arts Advisory Council on Historic Preservation Source: National Endowment for the Arts. Send data te Excel Part: 0/3 Part 1 of 3 Compute the least-squares regression line for predicting the 2006 budget from the 2004 budget. Round the slope and y- intercept to at least four decimal places. Regression line equation: y =

Organizations are interested in identifying variables that will predict the performance of job applicants. Two known predictors of job performance are personality (i.e., conscientiousness) and years of formal education. Researchers at the University of Arkansas believe that number of previous jobs held by job applicants may also predict performance. However, in contrast to conscientiousness and years of formal education, the researchers anticipate that number of previous jobs held will have an inverse relationship with job performance. To test their ideas, the researchers asked 125 car salespeople from Fletcher Honda to fill out a questionnaire that measured (a) their level of conscientiousness (CONSC) on a 7 point scale (1 = strongly disagree and 7 = strongly agree) where higher scores reflect being more conscientious, (b) years of formal education (EDUC), (c) and number of previous jobs held (JOBS). To measure job performance, the researchers used company records to record the number…

Chapter 3, Section 1, Exercise 001 State whether the quantity described is a parameter or a statistic and give the correct notation.Average household income for all houses in the US, using data from the US Census.