(a) Using practical examples, differentiate between thefollowing commercial averages: (i) Moving Average
(ii) Progressive Average (iii) Composite Average
(b) Explain what you understand by a theoretical probabilitydistribution and how it is useful in businessdecision-making?
(c) Explain the process of hypothesis testing, detailingclearly under which condition the Normal distribution may beused.
(d) Explain the difference between the following fournon-probability sampling methods: quota sampling, judgmentalsampling, snowball sampling and convenience sampling.
(e) Explain how the sampling methods discussed in (d) may beused in business administration. You are expected to make use ofshort practical examples to support your answer.
(f) Discuss the difference between permutation andcombination. State with practical examples, how these concepts areuseful in the context of business administration.
