Business Analysis 营业分析方法.ppt

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Business Analysis 营业分析方法

Business Analysis Business Analysis Business Analysis Purpose: Identify where the business stands in relation to rivals, etc. Collect and use data to inform business decision making Identify strengths and weaknesses in the business Use information to inform strategic planning Business Analysis Method: Collection of data from a range of sources: Market research Past sales data Market growth data Specialist analyst data Secondary data, e.g. Mintel Data Analysis Range of methods used to analyse data: Trends Growth rates Nominal Average Mean Median Mode Variance Standard deviation Range Time series analysis Scatter graphs Correlation Trends Looking for patterns in data collections Frequency and reliability of trends Impact of external factors, e.g. seasonal variation, random events, cyclical trends Averages Averages are a measure of central tendency – the most likely or common item in a data series Calculated through 3 measures: Mean Median Mode Averages Mean = Sum of items in the series/number of items X = Σx x Median = middle number in a data series – 0.5 (n+1) Mode = the most frequently occurring value in a data series Variance Averages have limitations – measures of data spread used to assess width Range – difference between the highest and the lowest value Standard Deviation – used to measure the variance of the data set from the mean – can highlight how reliable the mean is as being representative of the data set The Standard Deviation Correlation The degree to which there is a relationship between two or more random variables The closer the relationship the higher the degree of correlation Perfect correlation would be where r = 1 Time-Series Analysis Used to analyse movements of a variable over a time period – usually years, quarters, months, etc. Importance of assessing the: Trend Seasonality Key moments Magnitude Presentation Graphs Charts Tables Index numbers – Method of showing average changes in large amounts of data Lasp

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