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 18:40, 25jzaldivar
This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.
Answers: 2
Mathematics, 22.06.2019 00:00, berliedecius4051
Answer this question i need as soon as possible
Answers: 1
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