9.4.46

In the 2015 AFC Championshipgame, there was a charge that the New England Patriots underinflated their footballs for an advantage. ThePatriots' opponents during the championship game were the Indianapolis Colts. Measurements of theColts' footballs were taken. The balls should be inflated to between 12.5 and 13.5 pounds per square inch(psi). The accompanying data consists of six of the eight measurements on theColts' footballs.

H0: =12.5

Ha: <

12.35

12.15

12.30

12.50

12.70

12.55

The test statistic is

please tell me how to find my answer using the ti-84 calculator, what buttons do i push.