des stat

Topics: Standard deviation, Statistics, Normal distribution Pages: 3 (254 words) Published: August 19, 2014
Descriptive Statistics

QNT/561
July 29, 2014

Descriptive Statistics
Job Satisfaction
Central Tendency: Mean=8.5 JDI
Dispersion: Standard Deviation=1.16 JDI
Number: 139
Min/Max: 7 to 10 JDI
Confidence Interval: 8.36 to 8.75 JDI
*JDI=Job Descriptive Index

Months of Employment
Central Tendency: Mean= 136.24 Months
Dispersion: Standard Deviation= 117.26 Months
Number: 139
Min/Max: 1 to 359 Months
Confidence Interval: 116.74 to 155.73 Months

Descriptive Statistics Interpretation
Interpretation
Months of Employment
CHJ made a decision to choose 139 random employees. Their months of employment varied between a range of 1 and 359 days the employees estimated months employed with the company was around their months of employment were 136 days, either adding or subtracting 28 days , Nearly half of counted to be 136 days. CHJ strongly believes a 95% population months of employment average is between 116 and 165 days. Job satisfaction

CHJ carefully selected One hundred employees the range was between 7 and 10. Half of the employees choose 8.75 which meant they were satisfied with their job. The other employees who were surveyed choose 8.6 which mean they were satisfied but CHJ could do a little more improvements.

Appendix A
Raw data used in the analysis

Appendix B
Charts and Tables

Frequency of Male and Female Employees by Department

Legend: Blue=Males Red=Females

Appendix C
Descriptive Statistics

Months of Employment
count139
mean136.24
sample standard deviation117.26
sample variance13,750.36
minimum1
maximum359
range358

confidence interval 95.% lower116.74
confidence interval 95.% upper155.73
margin of error19.49
z1.96

Job Satisfaction
count139
mean8.55
sample standard deviation1.16
sample variance1.34
minimum7
maximum10
range3

confidence interval 95.% lower8.36
confidence...
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