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Summary Aantekeningen workshops statistics year 2 design
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Dit bestand bevat alle informatie die is gegeven tijdens workshops van Business Statistics in year 2 van Stenden Leeuwarden (DESIGN)
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SPSS Workshop 3 business statistics 09/05/17- Use clear names that makes sense
- Only use numeric data
- Gender ( 1=female, 2=male)
- 2 numbers is 2 Width
- You can’t change the width without changing the decimals
- Measure of gender is nominal
- Measure of age is scale
- Measure of performance is ordinal
- Value changes by clicking to the blue button in it (1=?)
- Measure of sports is nominal
- Measure of statistics is scale
Aantekeningen workshop 4 business statistics
Ranking 1-5
1 = Poor
2 = Insufficient
3 = Neutral
4 = Sufficient
5 = Excellent
Wanneer mensen 6-10 ranking gedaan hebben, opgeven als missing value (6-10)
Analysis Compare means One way ANOVA heb je nodig met meerdere groepen (gebruiken we bijna
nooit)
Analysis Compare means Independent samples t test gebruiken we
Test variablei os altijd scale
Grouping is nominal (kan)
T-test:
1 is er verschil tussen 2 groepen? JA OF NEE
2 Is het verschil significant? JA OF NEE (kleiner dan 5% (p<.05 , is het dan is het significant) Wanneer het
significant groter is dan 0.05, ga dan naar de bovenste rij. Wanneer dit kleiner is ga je naar de onderste
rij.
Wanneer het niet significant is, schrijf je een conclusie (There is… begin je mee).
(There is no significant difference in opinion about the reception between business and leisure guests
(T=1.488; df=79.642; P=.141).
, Wanneer het wel significant is schrijf je: deze conclusie
(There is a significant difference in opinion about the reception between business and leisure guests
(T=1.488; df=79.642; P=.041). As shown in table 1, business guests are more positive than leisure guests.
Alleen bij significante verschillen komt dat laatste zinnetje erbij. Alleen als het significant is moet het
eerste tabel er bij in. Het tweede tabel wordt niet gebruikt.
DF = Degrees of freedom (vrijheidsgraad)
Row = 15.6% dus het is een rijpercentage. (15.6% of the business guests buy
package 3 (rooms and meeting facilities))
Column 72 / 122 = 59 (59% of the rooms and meeting buyers are business guests)
Total 72 / 888 = 8.1 (8.1% are business guests and buy package 3 (meeting and rooms)
Je krijgt een percentage, daarbij moet je eerst
- Uitrekenen of het row coloumn of total is
- Daarna maak je de zin compleet zoals hierboven beschreven
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