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DATA ANALYSIS

Data Analysis and Inference

Data Analysis and Inference

Statistics

MALE

male systolic blood pressure in mmHg

FEMALE

women sys blood pressure in mmHg

N

Valid

40

40

40

40

Missing

0

0

0

0

Mean

1.01E4

118.90

2.06E4

110.80

Median

7191.00

117.00

1.94E4

107.00

Mode

1391a

110a

295a

104a

Std. Deviation

7.533E3

10.463

1.364E4

17.114

Variance

5.674E7

109.477

1.861E8

292.882

Skewness

.845

.749

-.071

2.197

Std. Error of Skewness

.374

.374

.374

.374

Kurtosis

.027

1.764

-1.733

6.981

Std. Error of Kurtosis

.733

.733

.733

.733

Range

30839

58

37794

92

Percentiles

25

3607.25

110.50

4880.25

100.25

50

7191.00

117.00

1.94E4

107.00

75

1.67E4

125.00

3.52E4

116.00

a. Multiple modes exist.

From above table of descriptive statistics we conclude that the mean value of systolic blood pressure is high in males as compare to females.

Histogram

The shape of histogram is positively skewed.

The shape of histogram is symmetric.

The shape of histogram is positively skewed.

Frequency Table

MALE (Binned)

Frequency

Percent

Valid Percent

Cumulative Percent

Valid

<= 1391

1

2.5

2.5

2.5

1392 - 5246

14

35.0

35.0

37.5

5247 - 9101

9

22.5

22.5

60.0

9102 - 12956

2

5.0

5.0

65.0

12957 - 16810

5

12.5

12.5

77.5

16812 - 20665

7

17.5

17.5

95.0

20666 - 24520

1

2.5

2.5

97.5

28376 - 32230

1

2.5

2.5

100.0

Total

40

100.0

100.0

male systolic blood pressure in mmHg (Binned)

Frequency

Percent

Valid Percent

Cumulative Percent

Valid

<= 95

1

2.5

2.5

2.5

106 - 114

15

37.5

37.5

40.0

115 - 124

10

25.0

25.0

65.0

125 - 134

12

30.0

30.0

95.0

135 - 143

1

2.5

2.5

97.5

144+

1

2.5

2.5

100.0

Total

40

100.0

100.0

FEMALE (Binned)

Frequency

Percent

Valid Percent

Cumulative Percent

Valid

<= 295

1

2.5

2.5

2.5

296 - 2815

1

2.5

2.5

5.0

2816 - 5334

9

22.5

22.5

27.5

5335 - 7854

1

2.5

2.5

30.0

7855 - 10373

2

5.0

5.0

35.0

10374 - 12893

1

2.5

2.5

37.5

12894 - 15413

1

2.5

2.5

40.0

15414 - 17932

2

5.0

5.0

45.0

17933 - 20452

4

10.0

10.0

55.0

20453 - 22971

1

2.5

2.5

57.5

30531 - 33050

1

2.5

2.5

60.0

33051 - 35569

11

27.5

27.5

87.5

35570+

5

12.5

12.5

100.0

Total

40

100.0

100.0

female systolic blood pressure in mmHg (Binned)

Frequency

Percent

Valid Percent

Cumulative Percent

Valid

<= 89

1

2.5

2.5

2.5

90 - 100

9

22.5

22.5

25.0

102 - 112

15

37.5

37.5

62.5

113 - 124

9

22.5

22.5

85.0

124 - 135

4

10.0

10.0

95.0

148 - 158

1

2.5

2.5

97.5

170+

1

2.5

2.5

100.0

Total

40

100.0

100.0

Bar Chart

Crosstabs

MALE (Binned) * male systolic blood pressure in mmHg (Binned) Crosstabulation

Count

male systolic blood pressure in mmHg (Binned)

Total

<= 95

106 - 114

115 - 124

125 - 134

135 - 143

144+

MALE (Binned)

<= 1391

0

0

0

1

0

0

1

1392 - 5246

0

9

1

2

1

1

14

5247 - 9101

1

2

3

3

0

0

9

9102 - 12956

0

1

0

1

0

0

2

12957 - 16810

0

2

1

2

0

0

5

16812 - 20665

0

1

3

3

0

0

7

20666 - 24520

0

0

1

0

0

0

1

28376 - 32230

0

0

1

0

0

0

1

Total

1

15

10

12

1

1

40

Chi-Square Tests

Value

df

Asymp. Sig. (2-sided)

Pearson Chi-Square

25.087a

35

.892

Likelihood Ratio

25.633

35

.876

Linear-by-Linear Association

.259

1

.611

N of Valid Cases

40

a. 47 cells (97.9%) have expected count less than 5.

FEMALE (Binned) * female systolic blood pressure in mmHg (Binned) Crosstabulation

Count

female systolic blood pressure in mmHg (Binned)

Total

<= 89

90 - 100

102 - 112

113 - 124

124 - 135

148 - 158

170+

FEMALE (Binned)

<= 295

0

0

1

0

0

0

0

1

296 - 2815

0

1

0

0

0

0

0

1

2816 - 5334

1

2

4

2

0

0

0

9

5335 - 7854

0

0

1

0

0

0

0

1

7855 - 10373

0

0

1

1

0

0

0

2

10374 - 12893

0

0

0

0

0

0

1

1

12894 - 15413

0

1

0

0

0

0

0

1

15414 - 17932

0

1

0

0

1

0

0

2

17933 - 20452

0

1

1

1

0

1

0

4

20453 - 22971

0

0

1

0

0

0

0

1

30531 - 33050

0

0

1

0

0

0

0

1

33051 - 35569

0

1

4

4

2

0

0

11

35570+

0

2

1

1

1

0

0

5

Total

1

9

15

9

4

1

1

40

Chi-Square Tests

Value

df

Asymp. Sig. (2-sided)

Pearson Chi-Square

77.720a

72

.302

Likelihood Ratio

43.006

72

.997

Linear-by-Linear Association

.633

1

.426

N of Valid Cases

40

a. 91 cells (100.0%) have expected count less than 5. The minimum expected count is .03.

Box plot

MALE (Binned)

FEMALE (Binned)

Hypothesis Testing

Ho: the rate of systolic blood pressure is high in males.

Ho: the rate of systolic blood pressure isn't high in males.

ANOVA

MALE

Sum of Squares

df

Mean Square

F

Sig.

Between Groups

1.400E9

19

7.370E7

1.814

.098

Within Groups

8.127E8

20

4.063E7

Total

2.213E9

39

From above table we conclude that as p value is greater than .05 so we accept null hypothesis.

Ho: the rate of systolic blood pressure is high in females.

Ho: the rate of systolic blood pressure isn't high in females.

ANOVA

FEMALE

Sum of Squares

df

Mean Square

F

Sig.

Between Groups

4.512E9

29

1.556E8

.567

.887

Within Groups

2.746E9

10

2.746E8

Total

7.257E9

39

From above table we conclude that as p value is greater than .05 so we accept null hypothesis.

References

Discussion

Individual yearly alterations in systolic BP and in diastolic BP were calculated as the distinction between the second and the baseline worth, split up by the time between the two visits. Mean time hold up between the first and the second visit was 6.1 ± 1.7 years. Blood pressure expanded considerably over time in the whole community (0.2 ± 2.5 and 0.2 ± 2.0 mm Hg for systolic BP and diastolic BP, respectively, p < 0.001 for each). Annual alterations in systolic BP and in diastolic BP were regressed on baseline standards, and residuals were split up into tertiles. For systolic BP, the smallest tertile (i.e., a decline [?] in systolic BP) encompassed men whose systolic BP dropped by >5.4 mm Hg per five years; the largest tertile ...
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