If, in fact, the charge against the New Jersey banks is true…

If, in fact, the charge against the New Jersey banks is true, then an increase in the percentage of minorities (x) will lead to a decrease in the number of bank branches in a county and therefore will result in an increase in the number of people per branch (y). Using hypothesis testing at the 99% confidence level and the regression output presented in Question 17, investigate whether this data support the charge made against the New Jersey banking community?        

According to statistics reported on CNBC, a surprisingly lar…

According to statistics reported on CNBC, a surprisingly large proportion of motor vehicles are not covered by insurance. Later a sample of 1200 motor vehicles is collected and it is revealed that 264 of them are not covered by insurance. What are the correct Hypotheses and the correct test statistic to test whether the true proportion of motor vehicles that are not covered by insurance is different from 20 %?