Question Help Suppose the null hypothesis is not rejected not rejected. State the conclusion based on the results of the test. Three years ago, the mean price of a single-family home was $ 243 comma 791 243,791. A real estate broker believes that the mean price has increased increased since then. Which of the following is the correct conclusion? A. There is not is not sufficient evidence to conclude that the mean price of a single-family home has not changed. B. There is is sufficient evidence to conclude that the mean price of a single-family home has not changed. C. There is not is not sufficient evidence to conclude that the mean price of a single-family home has increased increased. D. There is is sufficient evidence to conclude that the mean price of a single-family home has increased increased.