It is known from past information that the average house in America has 2.5 bedrooms. Suppose...
It is known from past information that the average house in America has 2.5 bedrooms. Suppose I take a sample of 28 houses now and find that the average number of bedrooms the homes have is 2.85 with a sample standard deviation of .83. I’m interested in seeing if there is evidence that the average number of bedrooms has increased.
- Using my sample of 28 houses, what would be the 95% confidence interval for the population mean?
- What are the null and alternative hypotheses?
- Calculate the test statistic.
- Find the p-value.
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