Does spending time online lead to greater unhappiness? To investigate this question, a researcher administers a depression inventory to a group of 45 individuals. The researcher divides these participants into three groups of low, medium, and high based on the data collected from their smartphones. The appropriate statistical test is a(n): a. independent-samples t test b. one-way within-groups ANOVA c. one-way between-groups ANOVA d. factorial ANOVA

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Q: e following data, representing random samples of  11 males and  11

A: given: for males  n1=11σ1=5.71x¯1=17.45 for females n2=11σ2=4.07x¯2=21.81

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Q: 5.5 -9.4 13.3 0.6 9.6 12.3 -5.9 4.5 8.6 19.4 12.9 5.8 -9.6 5.4 0.3 -0.7 12.6 0.4 -11.3 1.3 -3.1 -0.3…

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A: For First-born : M = 11.4  , SS = 26 , n =8 Standard deviation = SSn-1=267=1.9272   For Last-born M…

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