In a production process of smartphone screens, the manager wants to determine the reliability of the products. The scree
Posted: Wed Mar 09, 2022 9:06 am
- In A Production Process Of Smartphone Screens The Manager Wants To Determine The Reliability Of The Products The Scree 1 (11.98 KiB) Viewed 46 times
500 hours?
In a production process of smartphone screens, the manager wants to determine the reliability of the products. The screens must last at least 250 hours. He put under stress testing 50 screens over 250 hour period. The result were as follow: Number of units Number of hours they have lasted 2 12 5 102 8 188 10 204 25 250 1) Calculate the number of failures per hour () (2pts)