The mean work week for engineers in a start up company is

Last updated: 3/15/2023

The mean work week for engineers in a start up company is believed to be about 65 hours A newly hired engineer hopes that it s shorter She asks 10 engineering friends in start ups for the lengths of their mean work weeks Their responses are 70 45 55 60 65 55 55 60 50 55 Is the newly hired engineer testing a mean or a proportion mean proportion The null hypothesis in symbols is Is the test left tailed right tailed or two tailed left tailed right tailed two tailed O