Sign Test Concept and Example

Basic overview of how and when to use the sign test.

[gawdjt]

This is a very good example and clarifies a lot of questions. Thanks

[lawrence]

Very clear and straight forward, thanks for making this video!!!

[cetin]

Hello, great video!
Quick question: I know sign test does not require normally distributed data. But can we use the sign test on normally distributed data anyways?

[awekeningbro]

Why did you select maximum value of N ?? Under what condition do we select the lower value of N?

[caolanu]

@3:45 Every other video of the sign test uses the smaller number to calculate the test statistic, why do you use the bigger one???

[grnithy]

Thanks 👍. Your vid was much helpful. You gained a subscriber.

[gabedegoeij]

Thanks for the video, it was super clear and really helped. Thanks a lot!

[Historiale]

Hi, can I ask where do you get the formula for this? I badly need it, we need to cite or a journal article

[thisiswhoiam]

Can I ask? Bs=max or Bs=min value between no. of + & - ?

[zulffiquer]

Thanks. Instead of considering Bs=13; can I consider only the positive differences (Thus Bs=3)?

[eyang]

Why i use Excel to calculate the binomial test and the p-value is totally different from yours? mine says it's 0.011

[Axor]

What if M+ and n- are the same? What do you do then? Do you just look up either of them (since they are the same)?

[nnm]

I’m so confused what’s the point in counting how many positives and negatives if you are only going to count the non zero variables to put to the table

[anveshchauhan]

Please provide the link to download the table you used in this video.

[miguelzavala]

I thought most tables check for the right-tail alpha value, so why wouldn't it be .025?

[neena]

What table did you use and where did you get 0.02 value from? Does this table need to be used every time you calculate the sign test?

[saalkiaudience]

If hypothesis difference is 5 how to choose positive and negative sign...

[yoyoyoesmeriz]

"Among the 60 aircraft that arrived at a particular airport, 25 registered a time of
more than 1 hour parking. Test the hypothesis of the median of the distribution of
durations of parking be 1 hour. Use α=5%."

Any ideas guys?

[rosie]

How do you know which column to take away from which?

[itzboyon]

Bs max is not right, I think. We always chose the minimum number.