Mathematics, 23.09.2019 20:20 emilysjuliet110
Two companies make batteries for cell phone manufacturers. one company claims a mean life span of 2.5 years, while the other company claims a mean life span of 3 years (assuming average use of minutes/month for the cell phone). a) explain why you would also like to know the standard deviations of the battery life spans before deciding which brand to buy. b) suppose those standard deviations are 1.5 months for the first company and 9 months for the second company. does this change your opinion of the batteries? explain.
Answers: 3
Mathematics, 21.06.2019 21:30
At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.
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Mathematics, 21.06.2019 22:30
The pair of coordinates that do not represent the point( 5,150’) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)
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Mathematics, 22.06.2019 00:00
Evan went to the park and saw for animals each animal was either a duck or dog if he saw a total of 14 legs how many of each animal did he see
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Two companies make batteries for cell phone manufacturers. one company claims a mean life span of 2....
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