(1 point) A study was conducted to see how people reacted to certain facial expr

Question

(1 point) A study was conducted to see how people reacted to certain facial expressions. A sample group of n 36 was randomly divided into six groups. Each group was assigned to to view one picture of a person making a facial expression. Each group saw a different picture, and the different expressions were (1) Surprised (2) Nervous (3) Scared (4) Sad (5) Excited (6) Angry. After viewing the pictures, the subjects were asked to rank the degree of dominance they inferred from the facial expression they saw. e scale ranged from -10 to 10) The data collected is summarized in the table below. Surprised Nervous Scared Sad Excited Angry 1.3 -0.5 1.9 1.5 -2 -0.2 -1.2 1 -0,6 -1.3 05 1.4 Complete the following ANOVA table df SS MS F Source Expressions 5 5.485 1.097 Error 30 Total 35

Explanation / Answer

We input the data in excel sheet

Now we follow the commands:

Data-> data analysis-> single factor anova-> input range (select all columns ) -> grouped by column (mark on it) -> labels in first row (mark it) ->ok

we got following result

second table is our complete anova table.

since p=value = 0.69> .05

so we cant reject the null hypothesis and conclude that all groups have equal means.

surprised nervous scared sad excited angry -1.3 -0.5 1.9 1.5 -2 -0.2 0.3 1.7 -1.3 -1.7 0.1 -1.7 0.8 1.4 1.1 -1.6 -0.3 -1.6 -1 -1.5 -1 1.6 -2 -1.2 -1.7 -0.7 1.5 1.7 1.2 -0.4 -1.2 1 -0.6 -1.3 0.5 1.4

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