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Statistical methods

Nikiforov Alexander
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Introduction to Statistical Methods

Statistical methods are mathematical approaches to studying data that are widely used in marketing research. These methods allow not only for the analysis of large data sets but also for identifying patterns, testing hypotheses, and building predictive models. In the context of marketing, they help gain a deeper understanding of information about products, customer preferences, sales levels, and the effectiveness of advertising campaigns. For example, segmenting customers by various criteria allows for more precise targeting of marketing efforts.

Statistical methods are quantitative, which enables seeing the results of work in numerical terms and predicting the outcomes of future campaigns and innovations. This is extremely important for making informed business decisions, especially in high-risk conditions. For example, statistics can assess how various changes in a company may affect sales volumes, how many new customers a promotional campaign might attract, or what price for a product will be perceived by the target audience as fair.

Types of Statistical Analyses in Marketing

There are several main types of statistical analysis most commonly used in marketing:

  • Correlation Analysis
  • Regression Analysis
  • Factor Analysis
  • Cluster Analysis
  • Cohort Analysis
  • Variance Analysis
  • Descriptive Statistics

Correlation Analysis

Correlation analysis determines how one phenomenon depends on others. Correlation can be positive or negative, as well as strong or weak. For example, one might observe a positive correlation between the number of emails sent to customers and an increase in sales. Visually, the results of correlation analysis are often displayed on a scatter plot, where each intersection of two indicators is represented by a point. The closer the points are to each other, the stronger the correlation between them.

Regression Analysis

Regression analysis also studies the dependence of one phenomenon on others, but unlike correlation, it focuses on specific numerical values. With regression, one can predict the results of marketing activities. For example, an analysis of an advertising campaign might show that increasing the budget by 1000 rubles leads to the acquisition of two new subscribers, allowing for advance calculation of expected results for future campaigns.

Factor Analysis

Factor analysis helps to determine how different conditions affect the outcomes of processes. Key factors are identified first, followed by an examination of the influence of each on the result. For example, an ice cream manufacturer might notice that factors such as price, packaging, and advertising expenses affect sales levels, and decides to change the packaging first to analyze the consequences.

Cluster Analysis

Cluster analysis helps to group objects based on similar characteristics. With its help, marketers can segment their target audience by various variables, such as age and total purchases. This allows for the adaptation of marketing strategies to different segments of the target audience.

Cohort Analysis

Cohort analysis identifies groups of users based on a common action and time (for example, users who downloaded the application in a specific month). This allows for comparing the activity of users from different cohorts and drawing conclusions about the behavior of new users based on historical data.

Variance Analysis

Variance analysis shows the differences between average indicators in various groups. This allows for determining whether the differences are statistically significant. For example, one can compare the average sales volume at different sales points and determine how various factors, such as location or the number of sellers, affect sales.

Descriptive Statistics

Descriptive statistics is the simplest and most visual method of data analysis. In marketing, measures of central tendency, such as mean, mode, and median, are often used. These measures allow for summarizing data and drawing conclusions about trends. For example, the average receipt can be calculated to assess the effectiveness of an advertising campaign, while the mode can help identify the most common pricing approaches.