Answer to Question #115714 in Statistics and Probability for Caitlyn Jump

Question

1. Researchers asked a group of adolescents aged 3-15 the following question: “On a scale of 0-3, with
0 being the worst and 3 being the best, how much do you like unicorn giggles?” Their responses are
stratified by age group in the table below.
“0” “1” “2” “3”
3-7 years old 5 2 15 23
8-12 years old 20 15 2 14
13-15 years old 2 0 5 29
Test whether their responses are independent of age group at the α = 0.05 level of significance.
(a) State the null and alternative hypotheses, and use StatCrunch to calculate the P-value. Write
down the steps you take in StatCrunch as well as any statistics for which StatCrunch prompts
you.
(b) State your decision (with appropriate reasoning), and write a thorough conclusion

Answer 1

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