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Figures for the yearly crime rate (the number of crimes per 1,000 population) in Mississippi, USA from 1993 to 2002 are as follows:
1.35 1.63 2.33 2.41 2.63 2.93 3.41 3.26 3.64 4.51
(i) Display a normal probability plot using Minitab and test whether the data follow a normal distribution. Write down the null and alternative hypotheses. Draw your conclusion based on the p-value and use alpha = 0.05
(ii) Test, at the 1% level of significance, whether the yearly crime rate is over 2.5 crimes per 1,000 population.
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