For each of the cases in question 8, what is the appropriate central tendency measure? In a survey on productivity apps, respondents write in the number of apps they have installed in the past six months. What measures of central tendency can be used? Which is the most appropriate and why?
Q145; If you use the standard deviation as a measure of the variability in a sample, what statistical assumptions have you implicitly adopted? What essential factors are taken into consideration when statistical inference takes place? What is meant by “parameter estimation,” and what function does it perform for a researcher? How does parameter estimation for a mean differ from that for a percentage?
