Hypothesis Testing of Mean
a recent news report indicates
that the mean (Ã?µ) number of years that first-time drug offenders are
sentenced is 10.65. The sample of 31 court records from your county indicated a
mean number of years = 12.22 with a standard deviation of 3.26. Assume you are
working at the .05 level of significance
A)State the appropriate null
hypothesis
B)Level of significance
C)Critical Value).
D)Calculate the test statistic
E)State how the test statistic
evaluates in light of the critical value
F)Make a decision about the null
hypothesis
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