When should a chi-square test be performed (3 marks) b) List two (2) types of chi-square test and explain the difference between
both tests. (4 marks)
c) How do you find a chi-square value in the left tail of the distribution? (2
marks)
d) What is the parameter of a chi-square test? (1 mark)
e) What are observed and expected frequencies? (2 marks)
f) How is a chi-square distribution different from the z-distribution? (2
marks)
g) A busy pharmacy has a BMI weight scale installed inside the pharmacy,
which is available to customers Mondays through Fridays. The manager
of the pharmacy wanted to investigate if the number of persons utilizing
the BMI scale are the same for each of the 5 days of the week. A count
on one random week revealed the following data.