Mathematics, 17.12.2020 23:30 reebz62
4. A manufacturer claims that the mean lifetime of its lithium batteries is 1100 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1080 hours with a standard deviation of 80 hours. Test the manufacturer's claim. Use a = 0.01.
A. Reject the H0; there is not enough evidence to support the claim.
B. Do not reject the H0; there is enough evidence to support the claim.
Answers: 2
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Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?
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4. bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. ? 2x + 5 < 17 ? 2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6
Answers: 2
4. A manufacturer claims that the mean lifetime of its lithium batteries is 1100 hours. A homeowner...
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