Question: A random sample of size 36 is to be selected from a population that has a mean μ = 50 and a standard deviation σ of 10. Find the standard (z) score for a sample value of 40.

Question: Describe and give examples of research questions for which external validity is a primary concern. Describe and give examples of research questions in which internal validity is a primary concern.

Question: (5 marks). Reflective writing: Please comment on the applications of what you have learned from this module to dental research. (Minimum 1 sentence, maximum 100 words. You will be given 5 marks as long as you write something)

Question: Using the graph of empirical distribution function of BMI of sample participants, please determine if BMI=55 kg/m2 would be considered an outlier? Justify your answer.

Question: The results from a two-factor experiment can be presented in a matrix with the levels of one factor forming the rows and the levels of the second factor forming the columns, with a separate sample in each of the matrix cells. Using this matrix structure, describe what is meant by the main effects for...