Which of the following is defined as a systematic method of evaluating statistical data based on the results of several independent studies of the same problem ?
Meta Analysis
Meta-analysis is a statistical method that combines and evaluates the results of several independent studies on the same problem to arrive at an overall estimate of the effect, for example by pooling effect sizes.
Factor analysis reduces many variables into a few factors, regression analysis estimates the relationship between dependent and independent variables, and systematic analysis is not a specific technique for pooling study results.
Hence, the answer is Meta Analysis.
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Codes :
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Important Questions from Data Analysis - Teaching
Given below are two statements:
Statement I: In two tail test, 2.5% of the area of the normal curve falls on the right of 1.96 standard deviations above the mean and 2.5% to the left of 1.96 standard deviations below the mean.
Statement II: In one tail test, for testing the difference between large sample means, a z score of 1.64 is taken as Yardstick at the 5% level of significance.
In light of the above statements, choose the most appropriate answer from the options given below:
In a traditional extract–transform–load (ETL) workflow, data scrubbing performed during the transformation stage is:
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Temperature (°C) Number of stations 0–10 1 10–20 2 20–30 3 30–40 4 40–50 5 50–60 4 60–70 3 70–80 2 80–90 1 Using class midpoints, what is the estimated arithmetic mean temperature?
Temperature (°C) Number of stations 0–10 1 10–20 2 20–30 3 30–40 4 40–50 5 50–60 4 60–70 3 70–80 2 80–90 1 Using the standard grouped-data interpolation formula, what is the estimated median temperature?
