Final answer:
The question requires performing a one-sample t-test to find the p-value for Medicare's hypothesis that the average monthly rate for one-bedroom assisted-living facilities is $3,300. The sample data suggest a different average, and the p-value would indicate how strongly the sample evidence contradicts the hypothesized mean.
Step-by-step explanation:
The question is asking to determine the p-value of a hypothesis test, where Medicare wants to test if the average monthly rate for a one-bedroom assisted-living facility is equal to $3,300 against the alternative that the actual average rate differs from this amount.
Given a sample mean of $3,690, a standard deviation of $530, and a sample size of 12, we need to conduct a one-sample t-test to compare the sample mean to the population mean of $3,300. Using the significance level α = 0.05, if we were to perform this statistical test, we would calculate the t-statistic and then use the t-distribution to find the p-value. Based on the information provided in the question, the p-value appears to be very small, suggesting that the sample provides strong evidence against the null hypothesis.
The correct range for the p-value would need to be found by performing the calculations using the appropriate statistical methods or software.