Amanufacturer claims to have built a home stereo speaker that is 4 feet tall but uses an average of only 30 watts of power. a sample of 40 speakers from the manufacturer found that they used an average of 32 watts of power. the appropriate hypotheses to test the manufacturer’s claim are?

Original claim is H_o: M = 30

Alternate claim is H_a: M > 30.

Explanation:

Given data:

4 ft tall speaker consume 30 watt power

a group of 40 speaker consume average power of 32 watt

calculation:

A home installed 4 ft tall  speaker that use 30 watt Power

40 speakers used 32 watt Power

Original claim is H_o: M = 30

Alternate claim is H_a: M > 30.

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