(Solved): what conditions are necessary in order to use a t-test to test the difference between two population ...

What condions are necessary in order to use a f-test to test the daterences between two population means? Choose the correct answer below A. The population standard deviations are unknown. The populatoas are normally distributed or each sample slze is at least 30 B. The population standard deviations are unknown. The sangles are randomly selected and independent. C. The pogulation standard devlations are knoan. The sarmples are randorny selected and lindependent. The populations are normally detributed of each sample slte is at least 30 D. The population standard deviatioes are uninown The samples are randsemly selected and independerit. The populations are nomally dishlibuted or each sample slze is at least 30 .