Statistical Analysis and Hypothesis Testing: Chapter 13 Homework

A homework assignment focused on statistical analysis and hypothesis testing using concepts from Chapter 13.

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Statistical Analysis and Hypothesis Testing: Chapter 13 HomeworkChapter 13 HomeworkQuestions 1-3 below are based on the following scenario:A professor believes the students in a statistics class this term are more creative than most other studentsattending the university. A previous study found that students at the university had a mean score of 35 on astandard creativity test, and the current classof 30 studentshas an average score of 40 on this scale withastandard deviation of 8.93.1.What is thetscore?2.What is the effect size?3.If the professor wanted to test the null hypothesis described in the scenario using the 5% level ofsignificance,what isthe cut-offtscore?4.What is the conclusion based on Question 3?(reject or retain the null hypothesis)Since the obtained t-score (3.07)exceedsthe critical value (2.05), wereject the null hypothesis.Answer:Reject the null hypothesis.Questions 5-6below are based on the following scenario:

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