Statistics

A simple random sample is conducted of 1486 young adults who were once college students seeking bachelor’s degrees at a specific university. The study found that 780 of these young adults actually earned bachelor’s degrees. Use a 0.05 significance level to test the claim that a majority of the students at this university earn bachelor’s degrees. State the following



Null and alternative hypotheses:

Left -, right- or two tail test:

Test statistic

Critical value (s) (and draw the rejection region)
State rejection region:

P-value (draw this area, too)

Decision to reject/ fail to reject the null hypothesis (based on both tests)


Fully state your conclusion (in the context of the problem)


Of 99 adults selected randomly from one town, 63 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance. Show all work. (Round confidence interval limits to three decimal positions)

Confidence: ___________<p<________________


asked by Giselle

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