The p-value is actually wrong, what degrees of freedom did you use?
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Am I correct for this?
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I'm getting 1.82215E-38 when using the command =CHIDIST(210.9,12), how did you get 0?
yeah i rounded my answer to 0.000 , I also got that value of 1.822 E -38
| B Eng (Hons) | IB Mathematics SL | IB Mathematics HL | Australian Cricket | Casual University Statistics Tutor
Note that for most practical purposes, something on the order of 10^{-38} like the Excel calculation there is as good as 0 (since 10^{-38} = 0.0000…01, where the 1 comes in the 38th decimal place, so there's thirty-seven 0's after the decimal point).
The E in the Excel thing just means "times 10 to the power of".
Last edited by InteGrand; 28 May 2016 at 2:03 PM.
It seems that the word 'independent' confused me lol.
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Last edited by davidgoes4wce; 28 May 2016 at 2:42 PM.
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Last edited by davidgoes4wce; 28 May 2016 at 3:16 PM.
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Speaking of Statistics have any of you guys used R Programming and Statistical software? (for say work or university purposes)?
I want to be more proficient at this software and I enjoy using it in comparison to Excel, SPSS or Minitab for that matter as the speed is alot quicker.
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The p-value is the probability of an observation occurring assuming the null hypothesis is actually true. If the p-value is very low then the observation you see is very unlikely if the null hypothesis is true. If you believe the observation you see is typical (has a higher probability of occurring) then it is likely that your assumption may not be right, hence the decision reject it.
I've used R once upon a time
| B Eng (Hons) | IB Mathematics SL | IB Mathematics HL | Australian Cricket | Casual University Statistics Tutor
| B Eng (Hons) | IB Mathematics SL | IB Mathematics HL | Australian Cricket | Casual University Statistics Tutor
| B Eng (Hons) | IB Mathematics SL | IB Mathematics HL | Australian Cricket | Casual University Statistics Tutor
| B Eng (Hons) | IB Mathematics SL | IB Mathematics HL | Australian Cricket | Casual University Statistics Tutor
I'll admit I got this question from a quiz and from my understanding reading a textbook (which shows Excel cell calculation) my interpretation of this calculation is it should be :
= T.DIST.RT((25.23-19)/14.03, 24)
Last edited by davidgoes4wce; 31 May 2016 at 7:39 AM.
| B Eng (Hons) | IB Mathematics SL | IB Mathematics HL | Australian Cricket | Casual University Statistics Tutor
| B Eng (Hons) | IB Mathematics SL | IB Mathematics HL | Australian Cricket | Casual University Statistics Tutor
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