In the Past,the Mean Battery Life for a Certain Type $8.8 \text { hours. }$

question 55

Multiple Choice

In the past,the mean battery life for a certain type of flashlight battery has been $8.8 \text { hours. }$ The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean battery life has increased as a result.The hypotheses are: H0 : ? = 8.8 hours
HA : ? > 8.8 hours
Explain the result of a Type I error.

• A)The manufacturer will decide the mean battery life is 8.8 hours when in fact it is greater than 8.8 hours.
• B)The manufacturer will decide the mean battery life is 9.6 hours greater than it was prior to the change in the production method.
• C)The manufacturer will decide the mean battery life is 9.6 hours lower than it was prior to the change in the production method.
• D)The manufacturer will decide the mean battery life is greater than 8.8 hours when in fact it is greater than 8.8 hours.
• E)The manufacturer will decide the mean battery life is greater than 8.8 hours when in fact it is 8.8 hours.

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Definitions:

Lowballing Strategy

A sales technique where an item is initially offered at a lower price than is actually intended to be charged, after which the price is increased.

Obligated To Reciprocate

A social norm suggesting that individuals should return a favor or service, contributing to the establishment of reciprocal social exchanges.

Obedience

The act of following orders or directives from an authority figure, even if they are against one's personal wishes.

Authority

The power or right to give orders, make decisions, and enforce obedience.