# A graded Homework solved.

**Tutor description**

A health club annually surveys its members. Last year, 33% of the members said they use the treadmill at least 4 times a week. How large of sample should be taken this year to estimate the percentage of members who use the treadmill at least 4 times a week? The estimate is desired to have a margin of error of 5% with a 95% level of confidence. Compare and contrast the concepts of effect size and statistical significance. What is the difference between a statistically significant result and a clinically or “real world” significant result? Give examples of both. What is NHST? Describe the assumptions of the model. Describe and explain three criticisms of NHST. Describe and explain two alternatives to NHST. What do their proponents consider to be their advantages? Which type of analysis would best answer the research question you stated in response below, Justify your answer.

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