the president is concerned about the escalating costs of providing health care in the united states. one of the components contributing to the increasing cost is the length of the hospital stay of a patient. in a random sample involving patients, the sample mean time was days with sample standard deviation days. we would like to know if these results demonstrate that the true mean stay of a patient is significantly longer than days, by carrying out a test using a significance level of significance. determine the p-value of the test, and what decision should be made? group of answer choices
