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9. Hypothesis Testing for One Sample - 2! 1부
9. Hypothesis Testing for One Sample / Performing Hypothesis Tests: Variance / 문제 11
문제 11

The monthly rent (in dollars) paid by 1212 randomly selected residents in a city is listed below:
950950, 102010209909909809801005100510151015995995103010301010101010001000985985970970
At the α=0.05α=0.05 level of significance, is there sufficient evidence to conclude that the standard deviation of monthly rent is different from $25\(\text{\$}\)25? Assume the population is normally distributed.