How to interpret index numbers
Conceptually, the h-index is pretty simple. You just plot papers versus the number of citations you (or someone else) have received, and the h-index is the number of papers at which the 45-degree line (citations=papers) intercepts the curve, as shown in the diagram below. That is, h equals the number of papers that have received at least h citations. Use the two-digit area number (12 in the sample) to identify your township on the Cook County map. Look within the township area identified in Step 1 to find your two-digit section number (26 in the sample). Look within the subsection identified in Step 2 and use the three-digit block number (328 in the sample) to find your block. The AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. An index number is an economic data figure reflecting price or quantity compared with a standard or base value. The base usually equals 100 and the index number is usually expressed as 100 times the ratio to the base value. For example, if a commodity costs To understand growth (or non growth). Subtract 100 from any indexed value to know how much it has grown (or shrunk) compared to base value. To understand change with respect to a bench mark – ex: performance of a company with respect to stock market index. For more detailed discussion on indexation & its applications,
For example, index numbers computed in above table are simple index As already explained in the beginning of this topic, the period with which prices in
For example, index numbers computed in above table are simple index As already explained in the beginning of this topic, the period with which prices in An index number is the measure of change in a variable (or group of variables) over time. It is typically used in economics to measure trends in a wide variety of areas including: stock market prices, cost of living, industrial or agricultural production, and imports. Index numbers are one of the most used statistical tools in economics. How to Calculate Index Numbers Use an Index for Simplification. An index measures changes against a base value in a simplified fashion. Calculate Index Values. The first step in constructing an index involves setting the base value. Interpretation Issues. When using an index to track changes over An index number is a figure reflecting price or quantity compared with a base value. The base value always has an index number of 100. The index number is then expressed as 100 times the ratio to the base value. Note that index numbers have no units e.g. £, Euros or $. To begin, an index compares two numbers, for example: Index vs. Year Ago = $ Sales This Year ÷ $ Sales Last Year x 100. Index vs. Target = $ Sales ÷ $ Target x 100. An index is a very helpful number to understand when analyzing data. The problem can be in the interpretation of an index, which tends to get generalized. Index numbers measure relative changes in the price of a sum of representative data. For example, the FTSE-100 is an index displaying the average share price movements of the biggest 100 companies listed on the London Stock market. In the case of the FTSE-100, companies are given a weighting depending on their stock market capitalisation. The index measures the change in the price of all 100 shares; the price change is also multiplied by the relative weighting of the company. Read numbers regarding indexes or averages as non-dollar units. Instead, these numbers should be interpreted as percentages. For example, if an index rose 75 points from 1023, then interpret the 75 as 75/1023 or 7.33%. Thus, there was a 7.33% increase in the value of the index.
Body Mass Index (BMI) is a person’s weight in kilograms divided by the square of height in meters. A high BMI can be an indicator of high body fatness. BMI can be used to screen for weight categories that may lead to health problems but it is not diagnostic of the body fatness or health of an individual.
18 Apr 2017 Index numbers are used to aggregate detailed information on prices and We can give the following descriptive statistics interpretation of the Statistical agencies often report time series data in the form of index numbers. to understand how index numbers are constructed and how to interpret them. alternative ''best'' index number functional forms. This point must be kept in mind while reading this chapter, since there is no universal agreement on what the Start reading Index Numbers in Economic Theory and Practice on your Kindle in under a minute. Don't have a Kindle? Get your Kindle here, or download a FREE
In statistics and research design, an index is a composite statistic – a measure of changes in a representative group of individual data points, or in other words, a compound measure that aggregates multiple indicators. Indexes summarize and rank specific observations. Much data in the field of social sciences is
18 Apr 2017 Index numbers are used to aggregate detailed information on prices and We can give the following descriptive statistics interpretation of the Statistical agencies often report time series data in the form of index numbers. to understand how index numbers are constructed and how to interpret them. alternative ''best'' index number functional forms. This point must be kept in mind while reading this chapter, since there is no universal agreement on what the Start reading Index Numbers in Economic Theory and Practice on your Kindle in under a minute. Don't have a Kindle? Get your Kindle here, or download a FREE A value index is a measure (ratio) that describes change in a nominal value relative to its value in the base year. The index point figure for each point in time tells For example, index numbers computed in above table are simple index As already explained in the beginning of this topic, the period with which prices in
Downloadable! Index numbers are used to aggregate detailed information on prices and quantities into scalar measures of price and quantity levels or their
Construction of Price Index Numbers (Formula and Examples) 5. Difficulties in Measuring Some of them are explained below: 4. Weighted Average of 27 Dec 2015 Explanation of the meaning of index numbers. - Index numbers are a simple way of making it easier to compare numbers over a period of time. 4 Jun 2018 An index number is the measure of change in a variable (or group of variables) over time. It is typically used in economics to measure trends in Interpretation Issues. When using an index to track changes over time, you may find that the data changes and becomes less comparable to the original, or base So an index number can be with respect to a variable such as a price and demonstrates the change in that variable in present relative to a base year. An index
Index number development is a basic marketing tool. easily. – Index numbers can be utilized many different ways. ○ Using Interpretation of index numbers.