Suppose a random sample of 90 U.S. companies taken in 2005 showed that 52 offered high-deductible...

Suppose a random sample of 90 U.S. companies taken in 2005 showed that 52 offered high-deductible health insurance plans to their workers. A separate random sample of 110 firms taken in 2006 showed that 52 offered high-deductible health insurance plans to their workers. Based on the sample results, can you conclude that there is a lower proportion of U.S. companies offering high-deductible health insurance plans to their workers in 2006 than in 2005? Conduct your hypothesis test at a 0.05 significance level. a. State the null and alternate hypotheses

H0:________________________________________________________________

H1:________________________________________________________________

b. What is the level of significance? b.

c. What is the value of the test statistic? c.

d. Compute the p-value d.

e. What is your decision regarding the null hypothesis? Interpret the result.

__________________________________________________________________________________

Expert Solution

orchestra answered 1 year ago

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