The null hypothesis makes a claim about population parameter. A null hypothesis is a statement about the value of a population parameter. So the correct answer is (a).
An example of a null hypothesis is one that asserts that no statistical significance can be found in a collection of provided observations. A hypothesis is tested using sample data to determine how plausible it is. It is represented as H0 and is occasionally referred to as simply the "null." To determine if a theory regarding markets, investment methods, or economies is correct or wrong, quantitative analysts employ the null hypothesis, often known as the conjecture. The alternate theory contends that there is a distinction.
Therefore correct answer is (a).
Learn more about Null hypothesis here:
brainly.com/question/10696530
#SPJ4
The correct answer is concrete operational stage. This stage
is considered to be the third stage among the piaget’s theory of cognitive
development by which this period spans the time in terms of the middle
childhood and is being characterized through the development of the logical
thought.
Answer:
Explanation:
By the end of the republic, however, it was generally accepted that Rome had been founded in 753 bce and that the republic had begun in 509 bce, following the overthrow of Lucius Tarquinius Superbus, the last of Rome's seven kings.
Daniel Levinson's life structures model explores the idea of development beyond the adolescence stage. In his theory, the two key concepts are the stable period and the transitional period. While Irene Frieze theory says woman go through a slightly different developmental process.
Answer:
Migration is a form of geographic or spatial movement involving a change of usual residence between clearly defined geographical unit.Human beings,like other creatures,leave the place in which they dwell,in order to obtain some goals. The reasons they move from one place to another are geographical, social,political and economic as well.such movement is called migration.
Explanation:
Migration is measured by following measures:
1=In-migration rate
2=Out-migration rate
3=Net migration rate
4=Gross migration rate
Hope this helps you
