(Steps Shown) The average price of homes sold in the US in the past year was 220,000. A random sample of 81 homes sold this year showed an average price
Question: The average price of homes sold in the US in the past year was 220,000. A random sample of 81 homes sold this year showed an average price of 210,000. It is known that the standard deviation of the population is 36,000. At 95% confidence test to determine if there has been a significant decrease in the average homes
- state the null and alternative hypothesis to be tested
- compute the test statictic
- state the rejection rule
- state your conclusion and interpretation.
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