5. Suppose a new production method will be implemented if a hypothesis test supports the conclusion that the new method

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5. Suppose a new production method will be implemented if a
hypothesis test supports the conclusion that the new method reduces
the mean operating cost per hour.
a. State the appropriate null and alternative hypotheses if the
mean cost for the current production method is $220 per hour.
b. Describe in your own words the meaning of a Type I error in
terms of the context of the above scenario.
c. Describe in your own words the meaning of a Type II error in
terms of the context of the above scenario.