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Is the national crime rate really going down?
(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at level α?
At the α = 0.05 level, we reject the null hypothesis and conclude the data are statistically significant.
At the α = 0.05 level, we reject the null hypothesis and conclude the data are not statistically significant.
At the α = 0.05 level, we fail to reject the null hypothesis and conclude the data are statistically significant.
At the α = 0.05 level, we fail to reject the null hypothesis and conclude the data are not statistically significant.
(e) Interpret your conclusion in the context of the application.
There is sufficient evidence at the 0.05 level to conclude that the true proportion of arrests of males aged 14 to 34 in Rock Springs differs from 70%.
There is insufficient evidence at the 0.05 level to conclude that the true proportion of arrests of males aged 14 to 34 in Rock Springs differs from 70%.
