StatsProb PT
Storyboard Text
- Let's take a seat first and tackle about that. 
- Hey Tonet! Why are you still here? Its late, lets go home together!
- We're sisters, so go ahead. About what? 
- About the recent lesson in Statistics, specifically the appropriate tool to use. hehe
- Hello Ate Lina, I'm kinda shy but I am a bit confused about something. hehe Would you mind if i ask you?
- There's actually an easy way to get it. you actually don't need to memorize every word but those highlights only. 
- Oh that? I am confused with that, too. But I got it now, let me share you my learnings!
- I a confused with what  appropriate tool to use when a specific matter is givem.
- Thankyou so much, Ate Lina! I a just havng a hard time with that. huhu, tell me more pls.
- So, first remember "n", whether it is greater than or equal to 30 or less than 30
- And after that, observe the standard deviation or even variance is given.
- I knew you'll get it, but wait! There's more!
- .
- Under n ≥30,  if the standard deviation or variance is known and given, Z-test is the appropriate to use. 
- While on the other hand, under n<30, if standard deviation or variance is given, Z - Test is still applicable. 
- But if n<30 and the standard deviation or variance is not known, then we must use T -Test.
- OMG Ate Lina! I got it! I got it! You're so great!  
- Another one is the CLT or Central Limit Theorem
- We are both familiar in this one, so it won' be that hard to get it. 
- Ok ok, so here it is. 
- Yes, of course! But it'll be better if you explain it to me further. hehe
- In here, n ≥30 or considered sufficiently large
- In CLT, population may not be normally distributed, note it!
- And here, variance is either known or not. But this time, we can use z-test by replacing σ by sample standard deviation  in the formula. 
- Thankyou so much Ate Lina! I learned a lot plus I really enjoyed and treat this as our bond! God bless us all!
- Thankyou po!
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