26

1. Exhibit 16-1 An investigator collects the following data on variablesAandB, using a two-way independent groups design. Usea= .05 in analyzing the data.

   	VariableB
   VariableA	(1)	(2)	(3)
   (1)	10 12 14 18 17	13 15 17 22 16	15 19 20 25 19
   (2)	15 17 19 23 20	18 19 22 27 21	26 30 31 36 29

   Refer to Exhibit 16-1. The conclusion regarding the interaction is ____.

   retainH₀; chance is a reasonable explanation

   acceptH₀; chance is a reasonable explanation

   rejectH₀; there is a significant interaction between variablesAandB

   rejectH₀; there is no interaction between variablesAandB

2.5 points

Question 27

1. Exhibit 16-1 An investigator collects the following data on variablesAandB, using a two-way independent groups design. Usea= .05 in analyzing the data.

   	VariableB
   VariableA	(1)	(2)	(3)
   (1)	10 12 14 18 17	13 15 17 22 16	15 19 20 25 19
   (2)	15 17 19 23 20	18 19 22 27 21	26 30 31 36 29

   Refer to Exhibit 16-1.F_obtfor theAvariable equals ____.

   2.66

   16.34

   29.11

   11.23