Powerpoints Quantitative Research
4 important questions on Powerpoints Quantitative Research
How do you determine statistical significance?
- If (p ≤ 0.05), then the results are statistically significant, the deviation is not expected on the basis of normal fluctuation. H0 is then rejected (has become untenable/unachievable).
- If (p> 0.05), then the results are not statistically significant, the difference is probable give normal fluctuation. H0 is then maintained (H1 is not tenable/achievable).
The lower the percentage, the more reliable your statement (hypothesis), because your margin of error is much smaller
What are the measures of spread?
- Variation width
- Interquartile distance
- Variance
- Standard deviation
What is variation width (range)?
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How are interquartiles determined?
In statistics, a quartile is one of three values that divides an ordered set of data, the sample or population into four (as good as possible) equal parts. Each part is then a quarter of the dataset. One speaks of the first, second and third quartiles and notes them as Q1, Q2 and Q3.
Interquartile distance = Q3 - Q1
The question on the page originate from the summary of the following study material:
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