c) Suppose you are advising the police department about police patrol assignments. One neighborhood has a crime rate of 61 crimes per 1000 population. Do you think that this rate is below the average population crime rate and that fewer patrols could safely be assigned to this neighborhood? Use the confidence interval to justify your answer.

Yes. The confidence interval indicates that this crime rate is below the average population crime rate.Yes. The confidence interval indicates that this crime rate does not differ from the average population crime rate.No. The confidence interval indicates that this crime rate is below the average population crime rate.No. The confidence interval indicates that this crime rate does not differ from the average population crime rate.

(d) Another neighborhood has a crime rate of 77 crimes per 1000 population. Does this crime rate seem to be higher than the population average? Would you recommend assigning more patrols to this neighborhood? Use the confidence interval to justify your answer.

Yes. The confidence interval indicates that this crime rate does not differ from the average population crime rate.Yes. The confidence interval indicates that this crime rate is higher than the average population crime rate.No. The confidence interval indicates that this crime rate is higher than the average population crime rate.No. The confidence interval indicates that this crime rate does not differ from the average population crime rate.

(e) Compute a 95% confidence interval for , the population mean crime rate for all Denver neighborhoods. (Round your answers to one decimal place.)

lower limit
upper limit

(f) Suppose you are advising the police department about police patrol assignments. One neighborhood has a crime rate of 61 crimes per 1000 population. Do you think that this rate is below the average population crime rate and that fewer patrols could safely be assigned to this neighborhood? Use the confidence interval to justify your answer.

Yes. The confidence interval indicates that this crime rate is below the average population crime rate.Yes. The confidence interval indicates that this crime rate does not differ from the average population crime rate.No. The confidence interval indicates that this crime rate is below the average population crime rate.No. The confidence interval indicates that this crime rate does not differ from the average population crime rate.

(g) Another neighborhood has a crime rate of 77 crimes per 1000 population. Does this crime rate seem to be higher than the population average? Would you recommend assigning more patrols to this neighborhood? Use the confidence interval to justify your answer.

Yes. The confidence interval indicates that this crime rate does not differ from the average population crime rate.Yes. The confidence interval indicates that this crime rate is higher than the average population crime rate.No. The confidence interval indicates that this crime rate is higher than the average population crime rate.No. The confidence interval indicates that this crime rate does not differ from the average population crime rate.

(h) In previous problems, we assumed the x distribution was normal or approximately normal. Do we need to make such an assumption in this problem? Why or why not? Hint: Use the central limit theorem.

Yes. According to the central limit theorem, when n 30, the x distribution is approximately normal.Yes. According to the central limit theorem, when n 30, the x distribution is approximately normal.No. According to the central limit theorem, when n 30, the x distribution is approximately normal.No. According to the central limit theorem, when n 30, the x distribution is approximately normal.