Question

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.Please use SPSS using independent t-test to test the null hypothesis stated above and attach the output herewith.

3.State the conclusion the investigator is entitled to draw.

USE SPSS please!

Type A	Type B
12	8
10	10
8	5
11	7
15	8
12	5
9	4
16	7
11	8
8	10

Answer 1

NULL HYPOTHESIS H0:

ALTERNATIVE HYPOTHESIS Ha: (One tailed test)

This is a one tailed test

P value= 0.002( FOR TWO TAILED TEST)

P value= 0.001 (For one tailed test)

Since P value is smaller than the level of significance 0.05 therefore SIGNIFICANT.

Decision: REJECT NULL HYPOTHESIS H0.

Conclusion: We have sufficient evidence to conclude that 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).