Answer the Questions That Follow This SPSS Output

Answer the questions that follow this SPSS output:
 
 
Your research hypothesis is "On average, persons in the population with 16 years of schooling have less general knowledge (GENKNOW) than persons with 20 years of schooling." (¯(〖GENKNOW〗_16 )<¯(〖GENKNOW〗_20 ) )
A) State the null hypothesis being tested.
B) Is this a one-tailed or two-tailed hypothesis?
C) Are your sample results consistent with the null hypothesis or the research hypothesis? (null / research)
D) What is the significance level? (If this step in hypothesis testing can be skipped, write the word "SKIP".)
E) What is your conclusion? (In other words, do you "reject" or "not reject" the null hypothesis based on these results?)
F) Are your results statistically significant? (yes / no)

Correct Answer:

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a. On average, persons in the population...

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