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- Hi Gen, Ms Jennie simply discussed about our new topic. The Test Statistics on how we identify the sample standard deviation, population variance and sample mean off evry problem.
- Hi Mar, What have you learned from the discussion earlier? Can you share it with me, because I got preoccupied while the discussion is going.
- Can you tell me how to identify the Z- test, T-test and CLT? I doubted that Ms. Jennie will give us semmative test tomorrow.
- What are thosse three?
- In Z-Test your sample size must be greater than 30 and your staandard deviation is known. While in T-test must be lesser than 30 and your standard deviaion is unknown. Lastly, the CLT your sample must be greater and equal to 30 and your variance is known.
- Its simple, youjust need to identify first the given in the problem so that you can identify your sample size you can decide if it is a Z-Test, T-Test, or CLT.
- Thank you for informing me those Mar. I think I am ready to take the summative test.
- you're welcome Gen, what classmates ffor. But, next time focus so that you can learn more.
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