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The dean of a college is interested in the proportion of graduates from his college who...

The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation day. He is particularly interested in seeing if there is a difference in this proportion for accounting and economics majors. In a random sample of 200 of each type of major at graduation, he found that 70 accounting majors and 60 economics majors had job offers. Assume pooled estimate of the population proportion and a level of significance (α) of 0.05.

1. State your null and alternate hypotheses:

                         

2. What is the value of the test statistic? Please show all the relevant calculations.

3. What is the rejection criterion based on the p-value approach?

4. What is the Statistical decision (i.e. reject /or do not reject the null hypothesis) based on the p -value obtained? Justify your answer.

Math   Statistics-And-Probability   
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