Aaliyah used 210° for the laser, and 60° for the mirror.
2100
What should she try next for the mirror?
45°
75°
Explain your thinking.
60
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Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics