The annual earnings of 25 people with a high school diploma and 16 people with an...

The annual earnings of 25 people with a high school diploma and 16 people with an associate degree are shown below. Can you conclude that there is a difference in the mean annual earnings based on level of education? Assume that population are normally distributed and population variances are not equal.

High school diploma	Associate degree
x1=$36,875	x2=$44,900
s1=$5475	s2=$8580
n1=25	n2=16

Identify the claim and state the null and alternative hypothesis.

What type of statistical test should be used to answer the researcher’s question?

(Note: Is this a z-test or a t-test? One sample, dependent sample or independent sample)

Find the standardized test statistic and corresponding critical value(s).

At 0.05 significance level, decide whether to reject or fail to reject the null hypothesis.
Interpret the decision in the context of the original claim.

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Expert Solution

orchestra answered 1 year ago

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