Question 1, Page 37, 27 Visier’s 2014 Survey of Employers explores current work- force analytics and

Question 1, Page 37, 27

Visier’s 2014 Survey of Employers explores current work- force analytics and planning practices, investments, and future plans US-based employers were asked what they see as the most common technical barrier to workforce analytics The responses, stored in barriers , were as follows:

Barriers Frequency

Data must be integrated from multiple sources 68

Lack of automation/repeatable process 51

Metrics need to be identified or defined 45

Production is cumbersome 42

Data quality is not reliable 36

Sharing findings is challenging 21

Analytic tools are too complex 17

Ensuring security and integrity of workforce data 17

Other 3

Source: Data extracted from The State of Workforce Analytics and Planning, 2014 Survey Report, available at bitly/1zuM99Z

a Compute the percentage of values for each response need b What conclusions can you reach concerning technical barriers to workforce analytics?

Question 2, Page 37, 29

A study of selected Kickstarter projects showed that overall a majority were successful, achieving their goal and raising, at a minimum, the targeted amounts In an effort to identify project types that influence success, selected projects were subdivided into project categories (Film & Video, Games, Music, and Tech- nology) The results are as follows:

Outcome

CATEGORY

Successful

No Successful

Total

Film & Video

17,024

26,857

43,881

Games

5,105

10,075

15,180

Music

19,275

17,050

36,325

Technology

2,556

8,770

11,326

Total

43,960

62,752

106,702

Source: Kickstartercom, kickstartercom/help/stats

a Construct contingency tables based on total percentages, row percentages, and column percentages

b Which type of percentage—row, column, or total—do you think is most informative for these data? Explain

c What conclusions concerning the pattern of successful Kick-starter projects can you reach?

Question 3,

Construct a stem-and-leaf display, given the following data from a sample of mid-term exam scores in finance:

44

59

88

83

43

64

Question 4,

The following is a set of data from a sample of n= 11 items:

X:

8

6

9

4

7

1

3

5

10

6

9

Y:

2

6

5

10

9

1

7

3

8

6

5

  1. Construct a scatter plot Show your work
  2. Is there a relationship between X and Y? Explain

Question 5,

The following data is about the cost of electricity (in $) during July 2012 for a random sample of 50 0ne-bedroom apartments in a large city

96

171

202

178

147

102

153

197

127

82

157

185

90

116

172

111

148

213

130

165

141

149

206

175

123

128

144

168

109

167

95

163

150

154

130

143

187

166

139

149

108

119

183

151

114

135

191

137

129

158

  1. Construct a frequency distribution and a percentage distribution that have class intervals with the upper class boundaries $99, $119, and so on
  2. Construct a cumulative percentage distribution

Around what amount does the monthly electricity cost seem to be concentrated