A state housing department is trying to determine if housing prices in county B are lower than in county A. The 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. Country A Successes Observations Proportion Confidence level Z-score p-value Country B 366 Successes 700 Observations 0.523 Proportion 90% -1.372 0.085 192 400 0.480 p = Ex: 1.234 County A samples: nA = Ex: 9 County B samples: nB = Sample proportion for county A samples: PA Sample proportion for county B samples: B -3 -2 z = Ex: 1.234 Ex: 1.234 -1 0 1 2 3
A state housing department is trying to determine if housing prices in county B are lower than in county A. The 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. Country A Successes Observations Proportion Confidence level Z-score p-value Country B 366 Successes 700 Observations 0.523 Proportion 90% -1.372 0.085 192 400 0.480 p = Ex: 1.234 County A samples: nA = Ex: 9 County B samples: nB = Sample proportion for county A samples: PA Sample proportion for county B samples: B -3 -2 z = Ex: 1.234 Ex: 1.234 -1 0 1 2 3
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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