A Contact Lens Wearer Read That the Producer of a New

question 71

Multiple Choice

A contact lens wearer read that the producer of a new contact lens boasts that their lenses are cheaper than contact lenses from another popular company. She collected some data, then tested the null hypothesis H₀: µold - µnew = 0 against the alternative HA: µold - µnew > 0. Which of the following would be a Type II error?

• A) Deciding that the new lenses are cheaper, when in fact they really are.
• B) Deciding that the new lenses are cheaper, when in fact they are not.
• C) Deciding that the new lenses are not really cheaper, when in fact they are not.
• D) Deciding that the new lenses are not really cheaper, when in fact they are.
• E) Applying these results to all contact lenses, old and new.

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