175 Crash tests on new cars. Refer to Exercise 174 and the NHTSA crash test data. One quantitative variable recorded by the NHTSA is driver’s severity of head injury

(measured on a scale from 0 to 1,500). Numerical descriptive statistics for the 98 driver head-injury ratings in the CRASH file are displayed in the MINITAB printout at the bottom of the page.

a. Interpret each of the statistics shown on the printout.

b. Find the z -score for a driver head-injury rating of 408.

Interpret the result.

Transcribed Image Text:

Descriptive Statistics: DRIVHEAD Variable N Mean StDev DRIVHEAD 98 603.7 185.4 Minimum 216.0 Q1 475.0 Median 605.0 Q3 724.3 Maximum 1240.0