House prices: Data from the National Association of Realtors indicate that the mean price of a home in Denver, Colorado, in 2012 was 260.7 thousand dollars. A random sample of 86 homes sold in 2013 had a mean price of 285 thousand dollars. Can you conclude that the mean price in 2013 is greater than the mean price in 2012? Assume the population standard deviation is o = 155. Use the a=0.05 level of significance and the P-value method with the TI-84 calculator. Part: 0 / 6 Part 1 of 6 State the appropriate null and alternate hypotheses. Ho D=0 This hypothesis test is a (Choose one) ▼ test. right-tailed left-tailed two-taled

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