Statistical Literacy and Critical Thinking

Test of Child Booster Seats: The National Highway Traffic Safety Administration conducted crash test of child booster seats for cars. Listed below are results from

those test, with the measurement given in “hic,’ which is a measurement of a standard ” head injury criterion.’ According to the safety requirement , the hic

measurement should be less than 1000 hic. Do the different child booster seats have much variation among their crash test measurement?