For a sample of 100 rental homes in your area, you have found that the mean rent is $1580 with a standard deviation of $300 yoy know the mean nationally is $1430 but you do not know the standard deviation nationally. You want to use hypothesis testing to determine if there is a significant difference between the mean of the sample from your area and the national mean. You decide to use an alpha of .01. Calculate the appropriate obtained statistic. Round to the second decimal place