## Parametric and non-parametric stats tests, statistics, Basic Statistics

Assignment Help:
What is the difference between parametric and non-parametric stats tests?

What is the difference between parametric and non-parametric stats tests?
Different kinds or levels of data need to be analysed using different kinds of stats tests. The basic distinction between using a parametric or non-parametric test is between simple data:
Nominal – this means “named” data such as male/female, adult/juvenile, or tallies/counts of data such as the number of students taking maths at a college.
Ordinal – this means that your data is ordered in some simple way such as sea lions being classified as small, medium and large;
and complex data:
Interval – this is the same as ordinal data except that we know, for example, the actual length of small, medium and large sea-lions.
Ratio – this is the same as interval data except that it must make sense to have zero of the variable being measured. For example it is quite possible to get zero out of 20 in a math test but you cannot have zero personality, or zero height.

You also need to consider the distribution of your data before deciding upon a stats test. To use a parametric test data need to be normally distributed (form a bell shaped curve when plotted) – you can get your stats software programme to plot data for you, and check that the “skew” and “kurtosis” equal 1. If the data are not normally distributed and the skew and kurtosis do not equal 1 then you need to use a non-parametric test.

#### Adjustments, office supplies on hand at year-end amounted to \$100

office supplies on hand at year-end amounted to \$100

#### Production cost, If q=2,TP=450 and AP=225, what is MP. How can I figure out...

If q=2,TP=450 and AP=225, what is MP. How can I figure out what my marginal product will be?

#### Asked in genpact interview, Expenses a/c. Dr. To vendor a/c. Cr. What is a...

Expenses a/c. Dr. To vendor a/c. Cr. What is an impact of this transaction on business

#### Example, solving problem in skewness and kurtosis?

solving problem in skewness and kurtosis?

#### Project, impact of cost accounting technique in organizational performance

impact of cost accounting technique in organizational performance

#### Annual breakeven point, Hanks Western Wear is a western hat retailer in Lub...

Hanks Western Wear is a western hat retailer in Lubbock, TX.  Though Hanks carries various styles of western hats, every hat has approximately the similar price and invoice (purcha

#### The correlation coefficient to identify collocations, Would there be a poss...

Would there be a possibility to use the correlation coefficient to identify collocations? Compare with the Chi2 test. • How could we maybe do that?

#### Explain correlation coefficients, 1. What type of correlation coefficient w...

1. What type of correlation coefficient would you use to examine the relationship between the following variables? Explain why you have selected the correlation coefficients. A.

#### binomial problem-replication strategy, It is 11:30pm on Thursday evening, ...

It is 11:30pm on Thursday evening, New York City time. You are still recovering from your long haul flight from Sydney which arrived at JFK only hours ago. Thank your favourite dei

#### Nuclear spin, Nuclear spin All nucleons (protons or neutrons) are spin par...

Nuclear spin All nucleons (protons or neutrons) are spin particles. They have spin odd half multiple of h = (h/2p) they follow Fermi disc statistics or Pauli’s exclusion principle  