Business Research Project Part 4: Data Analysis
sarmar
descriptive_statistics.doc|
SHORT TITLE OF PAPER |
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Running head: DESCRIPTIVE STATISTICS |
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Descriptive Statistics
Jaime Margaria
QNT/561
September 8, 2014
Joseph Hamel
Descriptive Statistics
For the current sample, I have chosen two random days and shifts to compile information on how they are producing. In this example I have used Shift 1 on January 21 and their results of cases per shift as well as Shift 2 on March 21 and their results of cases per shift. This will give me a good idea as to how the two groups are producing on any given day.
Shift 1 on January 21
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Central Tendency: Mean = 136.63 cases |
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Dispersion: Standard Deviation = 11.89 cases |
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Number:8 |
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Min/Max: 122 cases to 156 cases |
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Confidence Interval: 41.952 cases to 231.308 cases |
See the histogram in Appendix A, and descriptive statistics in Appendix B.
Shift 2 on March 21
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Central Tendency: Mean =138 cases |
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Dispersion: Standard Deviation = 13.44 cases |
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Number: 8 |
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Min/Max: 123 cases to 159 cases |
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Confidence Interval: 42.373 cases to 233.627 cases |
See the histogram in Appendix A, and descriptive statistics in Appendix B. A scatter plot is in Appendix C.
Descriptive Statistics Interpretation
Shift 1 on January 21
Our first variable is the results of how many cases shift one completed on January 21. The average number of cases produced was 136.63 cases with a variation of plus or minus 11.89 cases. There is 95% confidence that the population average is between 41.952 cases to 231.308 cases.
Shift 2 on March 21
Our second variable is the results of how many cases shift two completed on March 21. The average number of cases produced was 138 cases with a variation of plus or minus 13.44 cases. There is 95% confidence that the population average is between 42.373 cases to 233.627 cases.
Appendix A
Histogram of Shift 1 on January 21
Histogram of Shift 2 on March 21
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Shift 1 |
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Shift 2 |
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Shift 3 |
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Cases of Product from 0700 through 1500 |
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Cases of Product from 1500 through 2300 |
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Cases of Product from 2300 through 0700 |
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Date |
21-Jan |
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Date |
21-Jan |
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Date |
21-Jan |
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Time |
Number of cases |
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Time |
Number of cases |
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Time |
Number of cases |
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0700-0800 |
129 |
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1500-1600 |
108 |
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2300-2400 |
159 |
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0800-0900 |
125 |
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1600-1700 |
107 |
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2400-0100 |
156 |
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0900-1000 |
137 |
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1700-1800 |
105 |
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0100-0200 |
153 |
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1000-1100 |
136 |
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1800-1900 |
109 |
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0200-0300 |
156 |
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1100-1200 |
137 |
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1900-2000 |
110 |
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0300-0400 |
159 |
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1200-1300 |
156 |
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2000-2100 |
112 |
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0400-0500 |
181 |
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1300-1400 |
151 |
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2100-2200 |
104 |
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0500-0600 |
128 |
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1400-1500 |
122 |
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2200-2300 |
103 |
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0600-0700 |
185 |
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Date |
21-Feb |
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Date |
21-Feb |
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Date |
21-Feb |
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Time |
Number of cases |
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Time |
Number of cases |
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Time |
Number of cases |
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0700-0800 |
133 |
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1500-1600 |
115 |
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2300-2400 |
162 |
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0800-0900 |
135 |
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1600-1700 |
118 |
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2400-0100 |
168 |
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0900-1000 |
137 |
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1700-1800 |
119 |
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0100-0200 |
169 |
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1000-1100 |
136 |
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1800-1900 |
117 |
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0200-0300 |
168 |
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1100-1200 |
138 |
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1900-2000 |
115 |
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0300-0400 |
159 |
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1200-1300 |
139 |
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2000-2100 |
116 |
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0400-0500 |
182 |
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1300-1400 |
138 |
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2100-2200 |
118 |
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0500-0600 |
182 |
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1400-1500 |
137 |
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2200-2300 |
119 |
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0600-0700 |
185 |
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Date |
21-Mar |
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Date |
21-Mar |
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Date |
21-Mar |
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Time |
Number of cases |
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Time |
Number of cases |
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Time |
Number of cases |
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0700-0800 |
128 |
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1500-1600 |
123 |
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2300-2400 |
193 |
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0800-0900 |
145 |
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1600-1700 |
129 |
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2400-0100 |
121 |
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0900-1000 |
146 |
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1700-1800 |
151 |
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0100-0200 |
112 |
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1000-1100 |
146 |
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1800-1900 |
151 |
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0200-0300 |
106 |
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1100-1200 |
146 |
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1900-2000 |
129 |
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0300-0400 |
159 |
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1200-1300 |
146 |
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2000-2100 |
131 |
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0400-0500 |
181 |
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1300-1400 |
135 |
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2100-2200 |
131 |
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0500-0600 |
169 |
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1400-1500 |
138 |
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2200-2300 |
159 |
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0600-0700 |
185 |
Appendix B- Raw data used in the Analysis
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Appendix C
Charts and Tables
Appendix D
Descriptive Statistics
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Descriptive statistics |
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# 1 |
# 2 |
# 3 |
# 4 |
# 5 |
# 6 |
# 7 |
# 8 |
# 9 |
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count |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
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mean |
136.63 |
107.25 |
159.63 |
171.88 |
117.13 |
136.63 |
141.25 |
138.00 |
153.25 |
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sample standard deviation |
11.89 |
3.11 |
17.61 |
9.85 |
1.64 |
1.92 |
6.86 |
13.44 |
35.08 |
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sample variance |
141.41 |
9.64 |
310.27 |
96.98 |
2.70 |
3.70 |
47.07 |
180.57 |
1,230.50 |
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minimum |
122 |
103 |
128 |
159 |
115 |
133 |
128 |
123 |
106 |
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maximum |
156 |
112 |
185 |
185 |
119 |
139 |
146 |
159 |
193 |
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range |
34 |
9 |
57 |
26 |
4 |
6 |
18 |
36 |
87 |
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Descriptive statistics Shift 1 |
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Number of cases |
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count |
8 |
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mean |
136.63 |
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sample standard deviation |
11.89 |
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sample variance |
141.41 |
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minimum |
122 |
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maximum |
156 |
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range |
34 |
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Descriptive statistics Shift 2 |
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Number of cases |
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count |
8 |
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mean |
138.00 |
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sample standard deviation |
13.44 |
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sample variance |
180.57 |
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minimum |
123 |
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maximum |
159 |
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range |
36 |
