Answered You can hire a professional tutor to get the answer.

QUESTION

THE OWNER OF A GASOLINE STATION WANTS TO STUDY GASOLINE PURCHASING HABITS OF MOTORISTS AT HIS STATION. HE SELECTS A RANDOM SAMPLE OF 60 MOTORISTS...

THE OWNER OF A GASOLINE STATION WANTS TO STUDY GASOLINE PURCHASING HABITS OF MOTORISTS AT HIS STATION. HE SELECTS A RANDOM SAMPLE OF 60 MOTORISTS DURING A CERTAIN WEEK , WITH THE FOLLOWING RESULTS:  THE AMOUNT PURCHASED WAS A SAMPLE MEAN = 11.3 GALLONS; S = 3.1 GALLONS.  ELEVEN MOTORISTS PURCHASED PREMIUM-GRADE GASOLINE.

FIND: AT THE 0.05 LEVEL OF SIGNIFICANCE , IS THERE EVIDENCE THAT THE POPULATION MEAN PURCHASED WAS DIFFERENT FROM 10 GALLONS ?

Show more
LEARN MORE EFFECTIVELY AND GET BETTER GRADES!
Ask a Question