I have a TI-84 Plus and when I use the invNorm function (or any of the "DISTR" functions) I don't see all the arguments like you do. Is there a way for me to see the arguments? It is a whole lot harder to use all these functions without seeing the arguments. My initial thought is that my calculator software may be out of date but when I went on TI's website the updates available were dated back to 2011 so I don't think that is my problem. Perhaps only the TI-84 PLUS CE has this functionality?
good video ... would have made the algebra a bit simpler if you first multiplied both sides by sqrt n then divide both sides by ten to avoid the reciprocals ... oh well ... to each his own ... good content anyway> Also, good explanation of why you would not use t distribution ... essentially you would have two unknowns to solve for ... sqrt n ... and df ... but all you really need to solve for is sqrt n.
This is a good teaching video that explores sample sizes and confidence intervals.
First love your channel
I have a TI-84 Plus and when I use the invNorm function (or any of the "DISTR" functions) I don't see all the arguments like you do. Is there a way for me to see the arguments? It is a whole lot harder to use all these functions without seeing the arguments. My initial thought is that my calculator software may be out of date but when I went on TI's website the updates available were dated back to 2011 so I don't think that is my problem. Perhaps only the TI-84 PLUS CE has this functionality?
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Shouldn’t the z score be 1.28 if you go by the z table
good video ... would have made the algebra a bit simpler if you first multiplied both sides by sqrt n then divide both sides by ten to avoid the reciprocals ... oh well ... to each his own ... good content anyway>
Also, good explanation of why you would not use t distribution ... essentially you would have two unknowns to solve for ... sqrt n ... and df ... but all you really need to solve for is sqrt n.
I can't find the playllist this video belongs in, can someone help me with that?
which class this video belong to? can anyone send me the link? or the complete playlist