In: Statistics and Probability
Exercise 1 Create a data file in SPSS using the following memory scores for this sample of 15 fictional patients with dementia:
Higher memory number indicates better memory performance. Use this information to complete the following in SPSS. |
||||||||||||||||
17) |
Run descriptive statistics on the dementia patients’ memory scores (make sure to include the mean and confidence interval by using the “Explore” option as shown in this week’s presentation). |
Enter the variable name as Memory_score in variable view
Go to analyze -->Descriptive Statistics -->Explore
Dependent List = Memory_Loss ,
Go To statistics --> Check Descriptive
Enter 95% for confidence interval -->continue --> Ok
Output
Case Processing Summary |
||||||
Cases |
||||||
Valid |
Missing |
Total |
||||
N |
Percent |
N |
Percent |
N |
Percent |
|
Memory_Score |
15 |
100.0% |
0 |
0.0% |
15 |
100.0% |
Descriptives |
||||
Statistic |
Std. Error |
|||
Memory_Score |
Mean |
6.9333 |
.61308 |
|
95% Confidence Interval for Mean |
Lower Bound |
5.6184 |
||
Upper Bound |
8.2483 |
|||
5% Trimmed Mean |
6.9259 |
|||
Median |
7.0000 |
|||
Variance |
5.638 |
|||
Std. Deviation |
2.37447 |
|||
Minimum |
3.00 |
|||
Maximum |
11.00 |
|||
Range |
8.00 |
|||
Interquartile Range |
4.00 |
|||
Skewness |
-.057 |
.580 |
||
Kurtosis |
-.940 |
1.121 |
BOX PLOT
Case Summariesa |
||
Memory_Score |
||
1 |
8.00 |
|
2 |
3.00 |
|
3 |
11.00 |
|
4 |
7.00 |
|
5 |
6.00 |
|
6 |
5.00 |
|
7 |
4.00 |
|
8 |
8.00 |
|
9 |
9.00 |
|
10 |
8.00 |
|
11 |
7.00 |
|
12 |
9.00 |
|
13 |
5.00 |
|
14 |
4.00 |
|
15 |
10.00 |
|
Total |
N |
15 |
a. Limited to first 100 cases. |
||
Screenshot of Dialog box