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Critical value (z*) for a given confidence level.
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1.88 is 0.96995 and 1.89 is 0.97062 on my Z table. Say I wanted the Z* critical value to be more exact, and be rounded to 4 decimal places, rather than just two (like 1.88). How do I do this? I’m sure there’s a simple formula for figuring this out
this class is complete BS. HATE STATS
I don't care what people say, Sal is the Macdaddy of online tutorials. No one can make it make sense like Khan Academy. Just shup up. You know it's true. Thank you Khan Academy for this god-given tutorial on anything math.
This video is helpless in the upcoming exercise; you'll just end up looking up the hints and being confused as to why by Sal's logic used 94% while by the excercise's logic you use (100% – 94%) ÷ 2 instead.
You say “we’ve done this in other videos” but don’t leave a link
with respect, you keep saying unrelated things, like you hide something in your words , poor teaching unfortunately or maybe just marketing either way still poor teaching thou
5:00 is what I was having so much error while reading the z score table and taking the wrong number ….now I get… really thanks
He makes it so complicated, i came because i was confused now im more confused
Nice explanation
you saved me Sal. God bless you!
I learned more about finding the z value in this 6 min video than I did with my very expensive stats college course. I would have had no hope were it not for Khan, thank you so much!
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