Jump to level A state housing department is trying to determine if housing prices in county B are lower than in county A. The 2 department decides to randomly sample recently sold houses in both counties and determine what proportion sold for more than $250,000. Since county A is considerably larger than county B, the housing department chose a larger sample from county A. The results of the data collected are shown below. County A County B Successes 665 Successes 340 Observations 900 Observations 500 p-hat_1 0.739 p-hat_2 0.68 Confidence level 99% P = Ex: 1.234 z-score -2.346 p-value 0.00939 -3 -2 -1 0 1 2 Z = Ex: 1.234 County A samples: n1 = Ex: 9 County B samples: n2 = Sample proportion for county A samples: p1 = Ex: 1.234 Sample proportion for county B samples: p2 = 2