Problem $10-27(Static)$

The state and local police departments are trying $to$ analyze crime rates $so$ they can shift their patrols from decreasing$-$

rate areas $to$ areas where rates are increasing. The city and county have been geographically segmented into areas

containing $5,000$ residences. The police recognize that not all crimes and offenses are reported: people $do$ not want $to$

become involved, consider the offenses too small $to$ report, are too embarrassed $to$ make a police report, $ordo$ not take

the time, among other reasons. Every month, because $of$ this, the police are contacting $by$ phone a random sample $of$

$1,000of$ the $5,000$ residences for data $on$ crime. $(Respondents$ are guaranteed anonymity.$)$ Here are the data collected for

the past $12$ months for one area:

$a.$ Determine the $\frac{?}{\text{b}\text{a}\text{r}}(P),S_{p}Z=1\mathrm{.}96$ January $=10(outof1,000$ sampled$)$

February $=12(outof1,000$ sampled$)$

March $=11(outof1,000$ sampled$)$

What comments can you make regarding the crime rate?

The process $isin$ control.

The process $is$ out $of$ control.