Beskou die volgende hipotese toets: / Consider the following hypothesis test:
H 0 : µ 1 - µ 2 = 0
H 1 : µ 1 - µ 2 0
Die volgende resultate is van onafhanklike steekproewe uit twee populasies verkry: / The following results were obtained from independent samples from two populations:

Steekproef 1 / Sample 1: n 1 = 35 x̄ 1 = 14.6 s 1 = 6.4
Steekproef 2 / Sample 2: n 2 = 40 x̄ 2 = 10.8 s 2 = 8.3

Watter aannames moet gemaak word om die hipotese te kan toets? / Which assumptions need to be made to test the hypothesis?

Question

Beskou die volgende hipotese toets: /  Consider the following hypothesis test: 
  H 0 : µ 1  - µ 2  = 0 
 H 1 : µ 1  - µ 2  > 0 
 Die volgende resultate is van onafhanklike steekproewe uit twee populasies verkry: /  The following results were obtained from independent samples from two populations: 
   
 Steekproef 1 /  Sample  1:                 n 1  = 35            x̄ 1  = 14.6                     s 1  = 6.4 
 Steekproef 2 /  Sample  2:                 n 2  = 40            x̄ 2  = 10.8                     s 2  = 8.3 
   
 Watter aannames moet gemaak word om die hipotese te kan toets?  / Which assumptions need to be made to test the hypothesis?

Answer

Geen van die bogenoemde. /  None of the above.

Answer

Die steekproewe moet onafhanklik wees. /  The samples must be selected independently.

Answer

Die steekproewe moet ewekansig geneem word. /  The samples must be selected at random.

Answer

Al die bogenoemde. /  All of the above.

Answer

Die populasie standaardafwykings is onbekend. /  The population standard deviations are unknown.

Crowdly

Beskou die volgende hipotese toets: / Consider the following hypothesis test: ...

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