Listed below are results in hic (head injury condition) units from crash test of child booster seats for cars. Use a .01 significance level to test th

Listed below are results in hic (head injury condition) units from crash test of child booster seats for cars. Use a .01 significance level to test that the sample is from a population with a mean less than 1000 hic. 774 649 1210 546 431 612