Summary Business statistics - Hospitality Operations Design
57 views 4 purchases
Course
Business statistics
Institution
NHL Stenden Hogeschool (NHL)
For the Business Statistics course of the Hospitality Operations Design module, the notation is the most important. In this document everything you need to know for the exam.
hospitality operations design business statistics nhl stenden hogeschool jaar 2
Written for
NHL Stenden Hogeschool (NHL)
business statistics
Business statistics
All documents for this subject (1)
Seller
Follow
Annebelle222
Reviews received
Content preview
Samenvatting document Business statistics
Variables
A nominal variable:(categorical)
> Categories
- Marital status, Male or female, eye colour.
An ordinal variable: (categorical)
> Categories + Ranking order
- 2, 3 and 4- star restaurant, Finishing position in a race, Olimpic medals
An interval variable: (Numerical)
> Rank order + Equal distance
- Intelligence, Temperature
A ratio variable starts:(Numerical)
> Rank order + Equal distance + zero
- Reaction time, Weight, Age, euro’s.
Mode
o The mode is the score that occurs most frequently
o Nominal, Ordinal, Interval, Ratio
Median
o Order the scores from the lowest to the highest score and then simply find the
middle score
o Ordinal, Ratio, Interval
Mean
o The average score
o Interval, Ratio
Standard Deviation
o The average deviation from the mean
o Interval, Ratio
T-test
o Used to compare means from two separate samples
o Interval, Ratio
Chi-square
o Used to compare proportions of cases in categories of a single nominal variable
with proportions expected under the null hypothesis
o Nominal, Ordinal
Correlation
, o Which describes the degree of a linear relationship between two interval/ratio
variables denoted by R
o Interval, Ratio
Regression
o Predict the most often occurring category in a cross table
o Interval, Ratio
Lecture 1: standard score
Lager dan 105?
Z = (x - µ) / Ơ
Z = (105-100)/10 = 0.50
P = ( Z< 0,5) .6915 (69.15%)
Hoger dan 105?
Z = (x - µ) / Ơ
Z = (105-100)/10 = 0.50
P= (Z > 0,5) .3085 (30.85%)
Hoe groot is de kans dat iemand betaald tussen 100 en 105?
Z = (x - µ) / Ơ
Z = (105-100)/10 = 0.50
P= ( 0< Z 0,< 5) .1915 (19.15%)
Lecture 2: Hypothesis testing.
Population = everyone we are interested in
Sample = the people we actually research
Step 1 › Formulate the hypothesis to test.
Step 2 › Find the statistical value to use.
Step 3 › Compute the sampling distribution for the hypothesis.
Step 4 › Check if the sample data matches this sampling distribution.
Lecture 3: Group differences.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Annebelle222. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $4.88. You're not tied to anything after your purchase.
