Social Studies, 06.11.2019 02:31 sierrabuckner645
The lifetime of a certain type of battery is normally distributed with mean value 10 hours and standard deviation 1 hour. there are four batteries in a package. what lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packs
Answers: 3
![P\left [\frac{x-\mu }{\frac{\sigma }{\sqrt{n}}} \frac{x-40}{\frac{1}{\sqrt{4}}}\right ]=5%](/tpl/images/0361/3112/a297b.png)
![P\left [ z \frac{x-40}{\frac{1}{\sqrt{4}}}\right ]=0.05](/tpl/images/0361/3112/6b289.png)
![1-P\left [ z< \frac{x-40}{\frac{1}{\sqrt{4}}}\right ]=0.05](/tpl/images/0361/3112/6cf53.png)
![P\left [ z< \frac{x-40}{\frac{1}{\sqrt{4}}}\right ]=0.95](/tpl/images/0361/3112/b1a76.png)
Another question on Social Studies
Social Studies, 22.06.2019 19:30
1u.s. history question! question: how did world war ii change the united states' position in world affairs? i need good explanation to support the answer otherwise i get docked points. real answers only ! you! : )
Answers: 2
Social Studies, 23.06.2019 03:00
1. create a hypothetical story of how a violent conflict arose between two groups. in your story, include examples of how in-group bias, out-group homogeneity, out-group derogation, and scapegoat theory lead toward violence between groups. be sure to label each term where it occurs in your story (20 points)
Answers: 3
You know the right answer?
The lifetime of a certain type of battery is normally distributed with mean value 10 hours and stand...
Questions
English, 26.11.2020 19:40
Mathematics, 26.11.2020 19:50
Biology, 26.11.2020 19:50
Mathematics, 26.11.2020 19:50
Mathematics, 26.11.2020 19:50
Social Studies, 26.11.2020 19:50
Health, 26.11.2020 19:50
Physics, 26.11.2020 19:50
