Value	8 hours of sleep	4 hours of sleep
X1	54	50
X2	70	50
X3	82	63
X4	66	53
X5	68	46
X6	100	48
X7	58	62
X8	96	59
X9	71	43
X10	66	60
Mean	73.1	53.4
SS	2060.9	456.4
n	10	10

What is the value of Abdul's standard error he would in his t-test (margin of error = 0.5)?

If Abdul uses a two tailed test with an alpha level of .01, what is the absolute value of critical values (margin of error = 0.1)?

What statistical methodology would you use to determine if the independent variable had an effect and why?

What are Abdul's independent and dependent variables?

How does Abdul attempt to control for individual differences? What is one alternative method he could have used?

What are the critical elements of the research project described above that allow you to determine if this is a within subjects or between subjects research design? Use this information to identify said study's design.

Report the statistical findings of Abdul's research in APA style. Be sure to report the descriptive statistics for both of his groups (mean & standard deviation) and his statistical test. Then describe the scientific conclusion he should make about whether his independent variable causes a change in his dependent variable. Be sure to describe the statistical results in terms of the operational definitions and the scientific conclusion in terms of the constructs of the independent and dependent variables.