Hello Aditya,
These are the topics of Quantitative Management.  A z-test is used for testing the mean of a population versus a standard. An F-test is used to compare 2 populations’ variances.
Go through the link below to check the detailed explanation-

https://brandalyzer.blog/2010/12/05/difference-between-z-test-f-test-and-t-test/

Good Luck!

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