The conclusion that should be drawn; Reject the null hypothesis, their graduates earn more than average.
How to form the hypotheses?
There are two hypotheses. First one is called null hypothesis and it is chosen such that it predicts nullity or no change in a thing. It is usually the hypothesis against which we do the test.
The hypothesis which we put against null hypothesis is alternate hypothesis.
Null hypothesis is the one which researchers try to disprove.
Null hypothesis is the average salary for new college graduates with a job is $50,556.
Alternative hypothesis is the graduates from a university earn more than that average.
Using the z-test to Calculate the value of test statistic:
t = (mean of sample - mean of null hypothesis)/(√(number of sample)
= (53200 - 50556)/(10200/√(100))
= 2.592 > 1.645
The conclusion that should be drawn; Reject the null hypothesis, their graduates earn more than average.
Learn more about null and alternative hypothesis here:
https://brainly.com/question/18831983
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