Statistics - Hypothesis Testing (Z-Testing)
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4. The average monthly cot for a studio apartment in NYC is reported to be $1,000. You want to prove that average monthly rent is not what is stated. You collect a random sample of 25 rents in all areas and find that the sample mean is $961 and the sample standard deviation is $110. Can you disprove the claim at the  = .05 level if normality is assumed?
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Solution Summary
The expert examines hypothesis testing for z-tests. A complete, neat and step-by-step solution is provided.
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n = 25, x-bar = 961, s = 110, a = 0.05
H0: m = 1000 vs Ha: m <> 1000
Two-tailed t- test at a = ...
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