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statistics.

 

  • Define statistics.
  • Identify different types and levels of statistics.
  • Describe the role of statistics in business decision making.
  • Provide at least three examples or problem situations in which statistics was used or could be used.

 

 

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Statistics

Paper details:-SOME HAVE TO HAVE SPSS SOFTWARE TO WORK ON FILE AND FINISH IT IN 3 HOURS JUST HALF PAGE.
ANOVA Data file:
-JUST EXPLAIN THIS RESULTS AND WRITE IT UP FOR VIEWERS OF THE OUTCOMES IN UNDERSTANDABLE LANGUAGE ADD TO IT USING IF IT NEEDED USING IMAGINATION:
A one-way ANOVA was conducted to explore the impact of age on levels of optimism. The optimism scale was from 1 to 30 and the number of total participants was 435. Subjects were divided into three groups according to age (Group 1 = 29 or below (n=147); Group 2 = 30 to 44(n=153); Group 3 = 45+(n=135)). There was a statistically significant difference at the p<.05 level for the three age groups (F= 4.6, p=.01). Despite reaching statistical significance, the actual difference in mean scores between the groups was quite small. The effect size, calculated using eta squared, was .02. Post-hoc comparisons using Tukey test indicated that the man score for Group 1 (M=21.36, SD=4.55) was significantly different from Group 3 (M=22.96, SD=4.49). Group 2 (M=22.10, SD=4.15) did not differ significantly from either Group 1 or Group 3.

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