Suppose a random sample of 130 U.S. companies taken in 2015 showed that 88 offered high-deductible health insurance plan
Posted: Wed May 11, 2022 9:37 am
Suppose a random sample of 130 U.S. companies taken in 2015 showed that 88 offered high-deductible health insurance plans to their workers. A separate random sample of 130 firms taken in 2019 showed that 73 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 2019 than in 2015? Conduct your hypothesis test at a 0.05 significance level. Use 2019 as the first sample and 2015 as the second sample. a. What are the null and alternate hypotheses? (2 points) HO: (Click to select) (Click to select) (Click to select) H1: (Click to select) (Click to select) | (Click to select) b. What is the level of significance? (1 point) (Round your answer to 2 decimal places.) c. Compute the value of the test statistic? (2 points) (Round your answer to 2 decimal places. Negative values should have a minus sign in front of them) d. Determine the p-value (2 points) (Round your final answer to 4 decimal places.) e. What is your decision regarding the null hypothesis? (1 point) O Fail to reject the null. O Reject the null. f. Interpret the result. (2 points)