Hello, I am having a very hard time with this question and am in need of help! Any questions or concerns please comment!
Please disregard the first answer I selected D by mistake, I am unsure of the actual formula.
Suppose a random sample of 110 companies taken in 2007 showed that 24 offered high-deductible health insurance plans to their workers. A separate random sample of 130 firms taken in 2008 showed that 35 offered high-deductible health insurance plans to their workers. Based on the sample results, can you conclude that there is a higher proportion of companies offering high-deductible health insurance plans to their workers in 2008 than in 2007? Conduct your hypothesis test at a level of significance a = 0.10. Let p, be the population proportion from 2008, and let p, be the population proportion from 2007. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho- P1 - P2 50 OB. Ho: P1 - P2 # 0 OC. Ho: P, - P2 = 0 HA: P1 - P2 = 0 HA: P1 - P2 =0 HA: P1 - P2 =0 O D. Ho P1 - P2 0 OE. Ho: P, - P2 = 0 OF. Ho: P1 - P2 20 HA: P1 - P2 20 HA : P1 - P2 # 0 HA: P1 - P2 =0 Determine the critical value(s). (Use a comma to separate answers as needed. Round to two decimal places as needed.) Calculate the test statistic. z= (Round to four decimal places as needed.) Reach a decision. Choose the correct answer below. A. Reject the null hypothesis. There is insufficient evidence to conclude that there is a higher proportion of companies offering high-deductible health insurance plans to their workers in 2008 than in 2007. O B. Do not reject the null hypothesis. There is insufficient evidence to conclude that there is a higher proportion of companies offering high-deductible health insurance plans to their workers in 2008 than in 2007. O C. Do not reject the null hypothesis. There is sufficient evidence to conclude that there is a higher proportion of companies offering high-deductible health insurance plans to their workers in 2008 than in 2007. O D. Reject the null hypothesis. There is sufficient evidence to conclude that there is a higher proportion of companies offering high-deductible health insurance plans to their workers in 2008 than in 2007
