Caselaw

Class Action (Tel Aviv) 11278-10-19 Yehoshua Klein v. Oil Refineries Ltd. - part 190

January 13, 2026
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The witness, Dr. D.  Laikin:     You can't look, you can't relate to statistical differences if you don't speak or don't take such tests

Adv. Dr. Tal Rotman:     So it is not possible to draw a statistical inference here from Table No. 2

The witness, Dr. D.  Laikin:     Yes, but we are talking about descriptive data, in numbers they are different, there is a very, very large sample here, but from the data that is presented it is not possible to relate..

Adv. Dr. Tal Rotman:     It is true that descriptive data in general is not possible.

The witness, Dr. D.  Laikin:     I pointed out, it's impossible.  But you can get a pattern. 

(pp. 1314-1315).

And later on -

Adv. Dr. Tal Rotman:     Is the answer, for your information, or Do you have any information, is the answer to any such question, its internal distribution was a normal?

The witness, Dr. D.  Laikin:     Oh, of each of the statements?

Adv. Dr. Tal Rotman:     Yes. 

The witness, Dr. D.  Laikin:     I don't know.  I didn't check

Adv. Dr. Tal Rotman:     You didn't check

The witness, Dr. D.  Laikin:     Nope.

Adv. Dr. Tal Rotman:     Are you aware that in the test of Manova A condition for running the test is that the distribution in each of the sections of the answers will be approximately normal?

The witness, Dr. D.  Laikin:     I know, I also know that many researchers use parametric tests for pragmatic reasons, even when the data do not always meet the assumption of the normal distribution

Adv. Dr. Tal Rotman:     I suggest that a distribution, where there are only 4 possibilities, can never be a normal distribution, right??

The witness, Dr. D.  Laikin:     Because of the...  In the end you have a result, you end up weighing it, making it almost always a score. 

Adv. Dr. Tal Rotman:     No, it's not a distribution, the normal distribution is how many people are in a histogram of not at all, how many are in the histogram of occasionally, how often and how much all the time, and you expect that in a normal distribution there will be a Gaussian bell, right?

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