after answer it, Pease write the steps for SPSS to let me do it myself. Before A
ID: 2907921 • Letter: A
Question
after answer it, Pease write the steps for SPSS to let me do it myself.
Before After 20 23 6 8 12 11 34 35 55 57 43 76 54 54 24 26 33 35 21 26 34 29 33 31 54 56 23 22 33 35 44 41 65 56 43 34 53 51 22 21 34 31 32 33 44 38 17 15 28 27 1. Indicate the variable being analyzed. 2. Indicate the t-value 3. Was the difference statistically significant? At what alpha level? 4. Indicate Effect Size 5. Draw a conclusion: Did the treatment/intervention or environment (stress level in Data set 4) make a difference between the group/s (sometimes dependent t-tests can be used with two different groups if they are matched on other characteristics) SPSS presents results cast against a two tailed test. Indicate if the differences were statistically significant (if so at what alpha level) with a directional hypothesis (one tailed test). 6.Explanation / Answer
Solution: SPSS steps
(1) Open SPSS sheet, enter variable name in variable view and data in data view.
(2) Go to Analyze>Compare means>Paired Samples Test.
(3) Send Variable "Paired" and "After" in Variable1 and Variable2 box.
(4) Press ok, result will be in output sheet.
Paired Samples Statistics
Mean
N
Std. Deviation
Std. Error Mean
Pair 1
Before
34.4400
25
14.79042
2.95808
After
34.8400
25
16.10041
3.22008
Paired Samples Correlations
N
Correlation
Sig.
Pair 1
Before & After
25
.881
.000
Paired Samples Test
Paired Differences
Mean
Std. Deviation
Std. Error Mean
95% Confidence Interval of the Difference
Lower
Upper
Pair 1
Before - After
-.40000
7.64308
1.52862
-3.55491
2.75491
Paired Samples Test
t
df
Sig. (2-tailed)
Pair 1
Before - After
-.262
24
.796
(1) Variable: Before and After
(2) Paired T-test: -0.262
(3) No, at alpha level 5%
(4) Degree of freedom: 24
(5) No, at 5% level of significance result is not significant i.e 0.796>0.05.
(4) Analysis is done for two tail test.
Paired Samples Statistics
Mean
N
Std. Deviation
Std. Error Mean
Pair 1
Before
34.4400
25
14.79042
2.95808
After
34.8400
25
16.10041
3.22008
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