# SPSS Assignment: Case Processing Summary (Math Problem Sample)

spss assignment

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SPSS ANALYSIS

Student name

Course name

Lecturer's name

Date

QUESTION ONE

* Develop a 95 percent confidence interval for the mean number of home runs per team and interpret the results. (2 points)

Case Processing Summary

Cases

Valid

Missing

Total

N

Percent

N

Percent

N

Percent

HR

30

100.0%

0

0.0%

30

100.0%

Descriptive

Statistic

Std. Error

HR

Mean

165.23

5.539

95% Confidence Interval for Mean

Lower Bound

153.90

Upper Bound

176.56

5% Trimmed Mean

165.13

Median

171.00

Variance

920.530

Std. Deviation

30.340

Minimum

102

Maximum

231

Range

129

Interquartile Range

39

Skewness

-.072

.427

Kurtosis

-.265

.833

Interpretation of results

This means that the researcher is 95% sure that the number of home runs is between 153.90 on the lower side and 176.56 on the upper side, with a standard error of 5.539 expected

* Develop a 90 percent confidence interval for the mean number of errors committed by each team and interpret the results. (2 points)

Case Processing Summary

Cases

Valid

Missing

Total

N

Percent

N

Percent

N

Percent

Errors

30

100.0%

0

0.0%

30

100.0%

Descriptive

Statistic

Std. Error

Errors

Mean

99.60

2.662

90% Confidence Interval for Mean

Lower Bound

95.08

Upper Bound

104.12

5% Trimmed Mean

99.31

Median

100.00

Variance

212.662

Std. Deviation

14.583

Minimum

68

Maximum

137

Range

69

Interquartile Range

19

Skewness

.351

.427

Kurtosis

.536

.833

Interpretation of results

The researcher is 90% sure that the number of errors committed by ach team is between 95.08 on the lower side and 104.12 on the upper side, with a standard error of 2.662 expected.

* Develop a 99 percent confidence interval for the mean number of stolen bases for each team and interpret the results. (2 points)

Case Processing Summary

Cases

Valid

Missing

Total

N

Percent

N

Percent

N

Percent

SB

30

100.0%

0

0.0%

30

100.0%

Descriptive

Statistic

Std. Error

SB

Mean

97.27

6.184

99% Confidence Interval for Mean

Lower Bound

80.22

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