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Statistics all important details
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  • Course
  • Statistics
  • Institution
  • NHL Stenden Hogeschool (NHL)

This document shows all the details to get a good grade on your statistics test of the Statistics course for the IHM course at NHL Stenden. I and my friends got an 8+ for the job myself.

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Document information

  • August 19, 2021
  • 4
  • 2019/2020
  • Class notes
  • -
  • All classes

Subjects

  • error

Written for

  • NHL Stenden Hogeschool (NHL)
  • International Hotel And Hospitality Management
  • Statistics
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floortje51

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Statistics most important details
Cheatsheat
Descriptive Difference Relations
statistics
Nominal Mode X2
Ordinal Median, range X2
Scale or Mean, stdev T-test Correlation,
Interval / ratio regression
P <..05  significant

P is smaller than 5% = significant
P is bigger than 5% = not significant

Descriptive statistics
1. Measure of centre
 Mode: most frequently observed value
 Median: mid-point – 50/50 (rank order your data)
 Mean: average
 Standard deviation: describes variation of a distribution, these two numbers describe /
summarize a group of data
 T-test: difference between 2 groups
 Chi square: relationship
 Correlation: relationship
 Regression: prediction

2. Measure of spread
Range: lowest – the highest value  ordinal
ST Dev  scale

Measurement levels:
Nominal: labels – variable with values with no numerical value (gender)
Ordinal: Ranking (star rating)
Scale: Same distance between number. (Age, length, income)

Scale is also interval / ratio: Same distance between number.
 Ratio has a zero point

Categorial: nominal, ordinal
Numerical: interval, ratio

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