A car maker claims average mileage is at least 35 mpg. Consumer testing yields x-bar = 33.8 with t = -1.40.
Using Ha: mu < 35 with df = 24, the p-value is roughly:
- A
0.50
- Bcheck_circle
0.087
- C
0.913
- D
0.005
Explanation
For df = 24 and t = -1.40, the lower-tail p-value is about 0.087.