A​ case-control (or​ retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash....

A​ case-control (or​ retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash. Results are given in the accompanying table. Using a

significance​ level, test the claim that injuries are independent of helmet color.

Identify the null and alternative hypotheses. Choose the correct answer below.

Compute the test statistic.( round 3 decimal places)

Find the critical​ value(s). (3 decimal places)

What is the conclusion based on the hypothesis​ test?