CAN SOMEONE please use SPSS and do STEP by STEP???
An investigator predicts that individuals that fit the Type A Behavior Pattern (highly competitive and time conscious) will have higher scores on a questionnaire measure of need for achievement than individuals that fit the Type B Behavior pattern (absence of Type qualities). The investigator collects need for achievement scores from 10 Type A subjects and 10 Type B subjects. Higher scores reflect greater levels of need for achievement.
1.Write the null and alternative hypotheses for testing this prediction.
2.Using SPSS perform an independent sample t-test to test the null hypothesis stated above and attach the output herewith.
3.Please provide a sentence for a result that states the conclusion the investigator is entitled to draw.
You can type this sentence on the SPSS output. Note : Please copy-paste your SPSS output on a word doc and attach as your answer. Your typed responses in a colored font will help me find your responses faster. Please do not directly attach the spss document. Attach word doc only.
Type A-- Type B
12-- 8
10-- 10
8-- 5
11-- 7
15 --8
12-- 5
9-- 4
16-- 7
11-- 8
8-- 10
a)
2)
SPSS Output:
t-Test: Two-Sample Assuming Equal Variances | ||
Type A | Type B | |
Mean | 11.2 | 7.2 |
Variance | 7.288889 | 4.177778 |
Observations | 10 | 10 |
Pooled Variance | 5.733333 | |
Hypothesized Mean Difference | 0 | |
df | 18 | |
t Stat | 3.735437 | |
P(T<=t) one-tail | 0.000757 | |
t Critical one-tail | 1.734064 | |
P(T<=t) two-tail | 0.001514 | |
t Critical two-tail | 2.100922 |
Calculations:
3)
conclusion:
Since the p-value is less than 0.05, we reject H0
So we have enough evidence to support the claim that individuals that fit the Type A Behavior Pattern (highly competitive and time conscious) will have higher scores on a questionnaire measure of need for achievement than individuals that fit the Type B Behavior pattern (absence of Type qualities).
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