To compare the battery life of Duracell versus Energizer batteries, sample of 140 Duracell batteries lasted an average of 345 minutes with a standard deviation of 95 minutes and a sample of 125 Energizer batteries lasted an average of 280 minutes with Asana deviation of 86 minutes. a) at the 1% level of significance, test the hypothesis that Duracell batteries last at least 45 minutes longer on average then energizer batteries
To compare the battery life of Duracell versus Energizer batteries, sample of 140 Duracell batteries lasted an average of 345 minutes with a standard deviation of 95 minutes and a sample of 125 Energizer batteries lasted an average of 280 minutes with Asana deviation of 86 minutes. a) at the 1% level of significance, test the hypothesis that Duracell batteries last at least 45 minutes longer on average then energizer batteries
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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To compare the battery life of Duracell versus Energizer batteries, sample of 140 Duracell batteries lasted an average of 345 minutes with a standard deviation of 95 minutes and a sample of 125 Energizer batteries lasted an average of 280 minutes with Asana deviation of 86 minutes.
a) at the 1% level of significance, test the hypothesis that Duracell batteries last at least 45 minutes longer on average then energizer batteries?
b) what is the P value?
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