Question: An engineer designs a new light bulb.The established mean for the lifetime of a bulb is 1200 hours.The engineer tests the new design and find

An engineer designs a new light bulb.The established mean for the lifetime of a bulb is 1200 hours.The engineer tests the new design and find that the lifetime is NOT significantly longer.If, in fact, the lifetime of the new design is significantly greater than 1200 hours.The researcher has

a. committed both a type I and type II error

b. not committed any statistical errors

c. Committed a type II error

d. committed a Type I error

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