Category Archives: Introductory Data Analysis(IDA)

Protected: Introductory Data Analysis: winter 2020 by Andersson

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Beta Error

https://www.khanacademy.org/math/ap-statistics/tests-significance-ap/error-probabilities-power/v/introduction-to-type-i-and-type-ii-errors

https://www.google.com/search?q=%CE%B2+error&rlz=1C1CHBF_enBD864BD864&oq=%CE%B2+error&aqs=chrome..69i57j0l7.10568j0j8&sourceid=chrome&ie=UTF-8

 

Some quick excel tips

IDA Old Question Solve

Winter 2019/20:

Normal distribution: meu=152
sigma=4.0

The Normal Distribution has:
Mean=Median=Mode
Symmetry about the center
50% of value less than the mean and 50% greater than the mean

 

1(b) Weibull

1(c)
https://www.statisticshowto.com/triangular-distribution/

(but I need to clear it up about Professor Orth solution)

2a

chi squaRE TEST

DEGREES of freedom

 

STATISTICS what it is?

 

 

Winter 2018/19:

 

Standard Deviation

What we learnt:
ctrl+d

ctrl+r

$ sign to lock before column and row

Related to F-test

https://support.office.com/en-us/article/f-inv-rt-function-d371aa8f-b0b1-40ef-9cc2-496f0693ac00

https://www.statisticshowto.datasciencecentral.com/probability-and-statistics/f-statistic-value-test/#FandP

 

https://support.office.com/de-de/article/fvert-funktion-ecf76fba-b3f1-4e7d-a57e-6a5b7460b786

 

Statistics, Data Science, T-test, Alpha value, Critical Value

https://statisticsbyjim.com/hypothesis-testing/hypothesis-tests-significance-levels-alpha-p-values/

https://towardsdatascience.com/statistical-significance-hypothesis-testing-the-normal-curve-and-p-values-93274fa32687

https://statisticsbyjim.com/glossary/significance-level/

https://blog.minitab.com/blog/adventures-in-statistics-2/understanding-hypothesis-tests-significance-levels-alpha-and-p-values-in-statistics

 

https://towardsdatascience.com/statistical-tests-when-to-use-which-704557554740

 

 

https://blog.minitab.com/blog/alphas-p-values-confidence-intervals-oh-my

 

https://www.geo.fu-berlin.de/en/v/soga/Basics-of-statistics/Hypothesis-Tests/Introduction-to-Hypothesis-Testing/Critical-Value-and-the-p-Value-Approach/index.html

 

How to Find the T Critical Value in Excel

 

https://www.statisticshowto.datasciencecentral.com/probability-and-statistics/find-sample-size/

 

https://www.statisticshowto.datasciencecentral.com/probability-and-statistics/confidence-interval/

 

https://www.statisticshowto.datasciencecentral.com/degrees-of-freedom/

 

https://www.khanacademy.org/math/ap-statistics/estimating-confidence-ap/one-sample-t-interval-mean/v/introduction-to-t-statistics

 

http://evolution.gs.washington.edu/gs560/2011/lecture3.pdf

 

best youtube video

 

Excel Function for finding T distribution:
https://www.excelfunctions.net/excel-tdist-function.html

 

 

https://support.office.com/en-us/article/video-vlookup-when-and-how-to-use-it-9a86157a-5542-4148-a536-724823014785