A manufacturer 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?

Question

Physics

Jaden Brady

2 November, 15:18

A manufacturer 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?

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Answers (1)

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Maxim Bolton · Answer 1

Original claim is H_o: M = 30

Alternate claim is H_a: M > 30.

Explanation:

Given dа ta:

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.