2. The following are the scores in spelling of 10
male and 10 female AB Psychology students.
Test the null hypothesis that there is no
significant difference …
A study was made to check whether it is true
that on the daily average income, men earn
more than women in a certain…
For a business to thrive, it must collect and
generate facts that reflect its current status.
These facts or data, need to be changed into
information, in order to support rational
management decision making.
3. We use statistics in medicine to ensure that the
care provided works and is to the benefit of as
many people as possible, with as few detrimental
affects possible.
A school’s success rates in Maths, English and
Science (usually expressed as percentages), will
be instrumental in their decision rating.
In Further Education, there are also statistics
used to show how many students are achieving
As and Bs in certain subjects. This can be
important for boosting the morale of students,
showing them that they too could be one of the
strongest performers in an examination
environment.
16. A variable, which can theoretically assume any value between
two given values is called a continuous variable, otherwise, it is
called discrete.
Examples:
The number of children in a family is a discrete variable – it can
only assume any of the values 0,1,2, etc. but it cannot be 1.5,
3.3, 4.55, etc.
The height of the individual, which can be 62 inches, 63.8 or
65.7 inches is a continuous variable.
In general, measurements give rise to continuous data while
enumeration or counting give rise to discrete data.
17.
18.
19.
20. Problem Set # 1
1.Discuss what are the common applications of Statistics
to your profession.
2. Give samples of Nominal, Ordinal, Interval and Ratio
Scales (at most two per scale).
