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Data Analysis: Descriptive Statistics and Assumption Testing

Correlation: Descriptive Statistics and Assumption Testing

Frequency distribution table

bin	Frequency
2	1
4	vi
6	31
eight	42
10	nineteen
12	four
More than	0

Histogram

Descriptive statistics table

Hateful almanac sick days per employee	Descriptive statistics
Hateful	vii.126214
Standard Fault	0.186484
Median	seven
Style	7
Standard Departure	ane.892605
Sample Variance	3.581953
Kurtosis	0.124923
Skewness	0.14225
Range	x
Minimum	ii
Maximum	12
Sum	734
Count	103

Measurement calibration

The minimum and maximum of Mean annual sick days per employee was 2 and 12.

Measure of primal tendency

The analysis shows that mean, median, mode and standard difference of Hateful almanac sick days per employee was 7.126214, 7, 7 and 1.89 respectively.

Evaluation

The Descriptive Statistics shows that the Kurtosis and skewness of Hateful annual ill days per employee is 0.124923 and 0.14225. The assumptions for parametric statistical testing were met here.

Uncomplicated Regression: Descriptive Statistics and Assumption Testing

Frequency distribution table

bin	Frequency
xxx	2
sixty	nine
90	xiii
120	23
150	29
180	18
210	49
240	31
270	17
300	24
330	4
360	4
More	0

Histogram

Descriptive statistics table

lost time hours	Descriptive Statistics
Mean	188.0045
Standard Error	4.803089
Median	190
Mode	190
Standard Deviation	71.72542
Sample Variance	5144.536
Kurtosis	-0.50122
Skewness	-0.08198
Range	350
Minimum	ten
Maximum	360
Sum	41925
Count	223

Measurement scale

The minimum and maximum of lost fourth dimension hours was 10 and 360.

Measure out of central tendency

The analysis shows that hateful, median, mode and standard divergence of lost fourth dimension hours was 188.0045, 190, 190 and 71.72542 respectively.

Evaluation

The Descriptive Statistics shows that the Kurtosis and skewness of lost time hours is -0.50122 and -0.08198. The assumptions for parametric statistical testing were met hither.

Multiple Regression: Descriptive Statistics and Assumption Testing

Frequency distribution table

Bin	Frequency
100	0
110	36
120	324
130	768
140	373
150	ii
More	0

Histogram

Descriptive statistics table

Decibel	Descriptive Statistics
Mean	124.8359
Standard Error	0.177945
Median	125.721
Mode	127.315
Standard Deviation	6.898657
Sample Variance	47.59146
Kurtosis	-0.31419
Skewness	-0.41895
Range	37.607
Minimum	103.38
Maximum	140.987
Sum	187628.four
Count	1503

Measurement scale

The minimum and maximum of Decibel was 103.38 and 140.9871.

Measure out of fundamental tendency

The assay shows that mean, median, style and standard deviation of Decibel was 124.8359, 125.721, 127.315 and 6.898657 respectively.

Evaluation

The Descriptive Statistics shows that the Kurtosis and skewness of Decibel is -0.31419 and -0.41895. The assumptions for parametric statistical testing were met here.

Independent Samples t Exam : Descriptive Statistics and Supposition Testing

Frequency distribution tabular array

Bin(Group A Prior Training Scores)	Frequency
50	4
55	5
60	three
65	11
70	9
75	ten
80	eleven
85	3
xc	5
95	1
More than	0

Bin (Group B Revised Training Scores)	Frequency
75	2
80	12
85	21
ninety	nineteen
95	6
100	ii
More	0

Histogram

Descriptive statistics table

Group A Prior Training Scores	Descriptive Statistics	Group B Revised Training Scores	Descriptive Statistics
Mean	69.79032258	Mean	84.77419355
Standard Mistake	1.402788093	Standard Error	0.659478888
Median	70	Median	85
Mode	80	Mode	85
Standard Deviation	11.04556449	Standard Deviation	5.192741955
Sample Variance	122.004495	Sample Variance	26.96456901
Kurtosis	-0.77667598	Kurtosis	-0.352537913
Skewness	-0.086798138	Skewness	0.144084526
Range	41	Range	22
Minimum	50	Minimum	75
Maximum	91	Maximum	97
Sum	4327	Sum	5256
Count	62	Count	62

Measurement scale

The minimum and maximum of Group A Prior Training Scores was 50 and 91. The minimum and maximum of Group B Revised Grooming Scores was 75 and 97.

Measure of central tendency

The analysis shows that mean, median, mode and standard deviation of Group A Prior Training Scores was 69.79, seventy, eighty and 11.04556 respectively. Similarly, mean, median, mode and standard deviation of Group B Revised Grooming Scores was 84.77, 85, 85 and v.19 respectively.

Evaluation

The Descriptive Statistics shows that the Kurtosis and skewness of Group A Prior Preparation Scores is -0.77667598 and -0.086798138. It as well shows that the Kurtosis and skewness of Grouping B Revised Training Scores is -0.352537913and 0.144084526. The assumptions for parametric statistical testing were met hither.

Dependent Samples (Paired-Samples) t Test: Descriptive Statistics and Assumption Testing

Frequency distribution table.

Bin (Pre-Exposure μg/dL)	Frequency
6	1
12	3
18	4
24	5
30	five
36	11
42	9
48	7
54	3
sixty	1
More	0

Bin (Mail-Exposure μg/dL)	Frequency
6	1
12	iii
18	iv
24	five
30	5
36	7
42	12
48	8
54	3
60	1
More	0

Histogram

Descriptive statistics table

Pre-Exposure μg/dL	Descriptive Statistics	Mail service-Exposure μg/dL	Descriptive Statistics
Mean	32.85714	Mean	33.28571
Standard Error	1.752307	Standard Fault	1.781423
Median	35	Median	36
Style	36	Way	38
Standard Deviation	12.26615	Standard Deviation	12.46996
Sample Variance	150.4583	Sample Variance	155.5
Kurtosis	-0.57604	Kurtosis	-0.65421
Skewness	-0.42511	Skewness	-0.48363
Range	50	Range	l
Minimum	6	Minimum	6
Maximum	56	Maximum	56
Sum	1610	Sum	1631
Count	49	Count	49

Measurement calibration

The minimum and maximum of both Pre-Exposure μg/dL and Mail-Exposure μg/dL was 6 and 56.

Mensurate of central trend

The assay shows that mean, median, style and standard deviation of Pre-Exposure μg/dL was 32.85714, 35, 36 and 12.26615 respectively. Similarly, mean, median, mode and standard difference of Post-Exposure μg/dL was 33.28571, 36, 38 and 12.46996 respectively.

Evaluation

The Descriptive Statistics shows that the Kurtosis and skewness of Pre-Exposure μg/dL is -0.57604 and -0.42511. It also shows that the Kurtosis and skewness of Post-Exposure μg/dL is -0.65421 and -0.48363. The assumptions for parametric statistical testing were met hither.

ANOVA: Descriptive Statistics and Assumption Testing

Frequency distribution table.

Bin (A = Air)	Frequency
ii	0
4	two
6	3
8	3
ten	5
12	five
14	ii
More	0

Bin (B = Soil)	Frequency
6	one
viii	7
10	8
12	three
xiv	i
More than	0

Bin (C = Water)	Frequency
2	0
4	ii
half-dozen	ix
8	iv
10	ii
12	3
More than	0

Bin (D = Preparation)	Frequency
2	0
4	4
half dozen	13
eight	3
More	0

Histogram.

Descriptive statistics tabular array.

A = Air	Descriptive Statistics	B = Soil	Descriptive Statistics	C = H2o	Descriptive Statistics	D = Training	Descriptive Statistics
Mean	8.9	Mean	9.one	Mean	7	Mean	5.4
Standard Error	0.684028	Standard Fault	0.390007	Standard Fault	0.575829	Standard Mistake	0.265568
Median	ix	Median	9	Median	half dozen	Median	5
Mode	xi	Way	8	Way	vi	Fashion	5
Standard Divergence	3.059068	Standard Deviation	i.744163	Standard Departure	2.575185	Standard Deviation	i.187656
Sample Variance	nine.357895	Sample Variance	iii.042105	Sample Variance	6.631579	Sample Variance	ane.410526
Kurtosis	-0.6283	Kurtosis	0.11923	Kurtosis	-0.23752	Kurtosis	0.253747
Skewness	-0.36085	Skewness	0.492002	Skewness	0.760206	Skewness	0.159183
Range	11	Range	7	Range	9	Range	v
Minimum	iii	Minimum	6	Minimum	3	Minimum	iii
Maximum	14	Maximum	13	Maximum	12	Maximum	8
Sum	178	Sum	182	Sum	140	Sum	108
Count	20	Count	xx	Count	xx	Count	20

Measurement scale

The minimum and maximum of air was iii and 14. Similarly, the minimum and maximum of soil was six and 13. The minimum and maximum of water was 3 and 12. Similarly, the minimum and maximum of grooming was 3 and 8.

Mensurate of central tendency

The analysis shows that hateful, median, way and standard difference of air was viii.9, nine, 11 and 3.059068 respectively. Similarly, hateful, median, mode and standard divergence of soil was nine.1, ix, eight and one.744163 respectively. The mean, median, manner and standard deviation of water was seven, vi, 6 and 2.575185 respectively. Similarly, mean, median, mode and standard divergence of grooming was 5.4, v, 5 and 1.187656 respectively.

Evaluation

The Descriptive Statistics shows that the Kurtosis and skewness of Air is -0.6283 and -0.36085. Information technology also shows that the Kurtosis and skewness of soil is 0.11923 and -0.492002. Similarly, the Kurtosis and skewness of water is -0.23752 and 0.760206. Moreover, the Kurtosis and skewness of training is 0.253747 and 0.159183. The assumptions for parametric statistical testing were met hither.

References

Linoff, M. S. (2010). Information Assay Using SQL and Excel. John Wiley & Sons.

Whigham, D. (2007). Business Data Analysis Using Excel. OUP Oxford.

Nirel, R., Adar, South. D., Dayan, U., Vakulenko-Lagun, B., Golovner, M., Levy, I., . . . Peretz, A. (2018). Fine and Coarse Particulate Thing Exposures and Associations with Acute Cardiac Events among Participants in a Telemedicine Service: A Case-Crossover Study. Environmental Health Perspectives, 126(ix), 097003. doi:x.1289/ehp2596

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