Caselaw

Class Action (Tel Aviv) 11278-10-19 Yehoshua Klein v. Oil Refineries Ltd. - part 189

January 13, 2026
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Adv. Dr. Tal Rotman:     [....]

Adv. Dr. Tal Rotman:     You actually said right now if I understood correctly that the statistical method you used actually measures from statement to statement but does not examine the total.

The witness, Dr. D.  Laikin:     No, what we did we did a test Manova.  We took all these twenty-five items, and put them as a world of content.  The statistical analysis looks at Manova's analysis and says is there a difference about this whole construct.  The entire construct consists of twenty-five statements.  I did not mention the statistical analysis, the results of the analysis from Nova.  I also reflected the table that speaks to the source of the differences between the groups. 

[....]

Adv. Dr. Tal Rotman:     You say, you want us to believe you that there is a difference, even though you didn't add it, even in ...

The witness, Dr. D.  Laikin:     Construct. 

Adv. Dr. Tal Rotman:     Construct, thank you for your help, Construct, but you didn't attach it.

The witness, Dr. D.  Laikin:     I didn't add it.

Adv. Dr. Tal Rotman:     OK.  Now say, in this table of...  I go back to Table 2 for a second, The percentages there, there are no PRight?

The witness, Dr. D.  Laikin:     No, no.

Adv. Dr. Tal Rotman:     How do you know that the differences here are significant??

The witness, Dr. D.  Laikin:     It's descriptive data, no, I didn't address their level of significance.

Adv. Dr. Tal Rotman:     In other words, you have not checked whether the differences here are significant differences

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

Adv. Dr. Tal Rotman:     You could check. 

The witness, Dr. D.  Laikin:     I could, here I referred to descriptive learning. 

Adv. Dr. Tal Rotman:     Why did you check in other places and here you didn't??

The witness, Dr. D.  Laikin:     I do not know.  I don't have an explanation

Adv. Dr. Tal Rotman:     Would you agree with me that if you compare descriptive data and don't know how to tell if they are statistically significant, you can't deduce anything from them statistically either?

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