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Author Question: A manufacturer claims that the mean lifetime of its lithium batteries is 1500 hours. A homeowner ... (Read 75 times)

hbsimmons88

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on: Jan 16, 2020
A manufacturer claims that the mean lifetime of its lithium batteries is 1500 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1470 hours with a standard deviation of 80 hours. Test the manufacturer's claim. Use α = 0.05. Round the test statistic to the nearest thousandth.
Statistics: Informed Decisions Using Data ¦ Sullivan ¦ 5th Edition
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Marked as best answer by hbsimmons88 on Jan 16, 2020

morrie123456

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Reply #1 on: Jan 16, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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hbsimmons88

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Reply 2 on: Jan 16, 2020
YES! Correct, THANKS for helping me on my review

Perkypinki

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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