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).
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Answer:
Federalists argued that the Constitution did not need a bill of rights, because the people and the states kept any powers not given to the federal government. Anti-Federalists held that a bill of rights was necessary to safeguard individual liberty.
The amendments, known as the Bill of Rights, were designed to protect the basic rights of U.S. citizens, guaranteeing the freedom of speech, press, assembly, and exercise of religion; the right to fair legal procedure and to bear arms; and that powers not delegated to the federal government were reserved for the states.
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Answer:
Field research.
Explanation:
Since the sociologist studied the learning capacity of toddlers by joining a preschool for six months, he has likely conducted a field research or a field study. Field research is the collection of raw data outside a laboratory or a library. It is a qualitative method of data collection that aims to observe, interact and understand people while they are in a natural environment. It focuses on capturing live experiences.
Mongolos live on eating livestock farming, they usually eat a single full meal a day. Which consists of domestic animals, for example cows, chickens, goats, horses, camels, etc.
