The average life expectancy of tires produced by Whitney Tire Company has been 40,000 miles. Management believes that due to a new production process, the life expectancy of its tires has increased. Which of the following procedure would be the most direct way to determine the validity of this belief? O A hypothesis test in which the alternative hypothesis is that the mean life expectancy of the tires is <40,000. A hypothesis test in which the alternative hypothesis is that the mean life expectancy of the tires is >40,000. A confidence interval for the average life expectancy of the tires. O A confidence interval for the average number of the tires produced by Whitney Tire Company.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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The average life expectancy of tires produced by Whitney Tire Company has been 40,000 miles. Management
believes that due to a new production process, the life expectancy of its tires has increased. Which of the
following procedure would be the most direct way to determine the validity of this belief?
O
A hypothesis test in which the alternative hypothesis is that the mean life expectancy of the tires is
<40,000.
A hypothesis test in which the alternative hypothesis is that the mean life expectancy of the tires is
>40,000.
A confidence interval for the average life expectancy of the tires.
A confidence interval for the average number of the tires produced by Whitney Tire Company.
Transcribed Image Text:The average life expectancy of tires produced by Whitney Tire Company has been 40,000 miles. Management believes that due to a new production process, the life expectancy of its tires has increased. Which of the following procedure would be the most direct way to determine the validity of this belief? O A hypothesis test in which the alternative hypothesis is that the mean life expectancy of the tires is <40,000. A hypothesis test in which the alternative hypothesis is that the mean life expectancy of the tires is >40,000. A confidence interval for the average life expectancy of the tires. A confidence interval for the average number of the tires produced by Whitney Tire Company.
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