Ask Question
14 May, 13:48

g Two companies market new batteries targeted at owners of personal music players. Dura Tunes claims a mean battery life of 11 hours, while RockReady advertises 12 hours. Suppose the standard deviations are 2 hours for DuraTunes and 1.5 hours for RockReady. 1) What is the proportion of batteries produced by Dura that last less than 8 hours? 2) What is the proportion of batteries produced by RockReady that last less than 8 hours? 3) You are headed for 8 hours at the beach. Which battery would like to choose? why

+1
Answers (1)
  1. 14 May, 14:59
    0
    1) Less than 13.6%

    2) Less than. 1%

    3) RockReady

    Explanation:

    THe standar deviation is a measure in statistics used to expres the dispersion of a set of values, so the standar deviation normally includes 34.1% of the values up and down the scale, so for example In Dura tunes 34.1% of the batteries would have 9 to 13 hours of battery life, to go down to 8 hours you would have to scale to the next deviation and that is of 13.6%, in RockReady is of 1.5 hours, and you would have to go down till the deviation of. 1% to find the 4 hours needed in order for the batteries to have a battery life of 8 hours, that is why the best option statistically would be Rock Ready.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “g Two companies market new batteries targeted at owners of personal music players. Dura Tunes claims a mean battery life of 11 hours, while ...” in 📘 Business if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers