Factors Influencing Customers Wine Purchases & Product Attributes Preferences2
are asked and the related questions’ responses with the research questions are extracted to
performed different statistical analysis.
The different questions can be broadly classified into two categories namely the preference
questions while buying wine and informative question. A total of 7 preference questions are
asked to people in survey in which responses are extracted in a Likert scales of 1 to 5 where 1
indicates factor not influential and 5 indicates extremely influential factor. The seven factors
are Brand that was tasted before, recognized brand, recognized variety, well-known region,
expert rating and price. The informative question are living region, age group, frequency of
buying wine, gender, highest education level, total combined income of household, drinking
place, drinking time, the preferred wine type, preferred region respectively. The sampling
procedure to collect these information from the sample people and analysis are described in
the later sections.
Sampling techniques:
Now, the sample size is a very important parameter for determining the strength of
predictions or decisions. All the statistical methods the probability based meaning in all the
statistical methods the population data should approximately follow normal distribution.
Now, a good sample size is a generally more than or equal to 10% of the population (Etikan
& Bala 2017). Now, the number of people in New Zealand is over 47 lakhs and thus it is
impossible to collect information from the sample of 10% of population. Hence, the
population size is confined to very small in Auckland city of New Zealand where the
population is about 1000 and hence the chosen sample size is 100 (Yun & Qin, 2019). Also,
this sample size satisfies the minimum sampling size of normal distribution approximation
where n/N must be greater than 5% (where n = sample size and N = population size).

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