In an article by rice and Anderson, the authors studied a large number of automobile accidents involving small children. The data below is taken from a random sample of small children based on what type of restraint they had. Use this information to answer all the parts that follow.

type of restraint - age in years

0. 1. 2.

safety seat. 1143. 1328. 1086

seat belt 41. 93. 172

no restraint 270. 249. 368

what is the null hypothesis?

1. Type of restraint and age are not independent

2 type of restraint and Age are independent

3 type of restraint and age are dependent

4. type of restraint and age are equal

what is the alternative hypo thesis?

what is the value for the test statistic?

what is the p-value?

are the requirements for this test satisfied?