Census data for a certain county show that 20% of the adult residents are Hispanic. Suppose 73 people are called for jury duty and only 11 of them are Hispanic. Does this apparent underrepresentation of Hispanics call into question the fairness of the jury selectionsystem?

1. What is an appropriate hypotheses:

H0:

HA:

2.The test statistic is z= ____.

(Round to two decimal places asneeded.)

3.TheP-value is ____.

(Round to three decimal places asneeded.)

4.State your conclusion assuming aP-value smaller than 0.05 is significant.

__1___ the null hypothesis. There ___2___ sufficient evidence to conclude that the proportion of Hispanics in the jury pool is ___3___ the proportion of Hispanics in the population.

1.

a) Reject

b) Do not reject

2.

a) is not

b) is

3.

a) greater than

b) different from

c) not different from

d) less than