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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America is at war. We have been fighting drug abuse for almost a century. Four Presidents have personally waged war on drugs. Unfortunately, it is a war that we are losing. Drug abusers continue to fill our courts, hospitals, and prisons. The drug trade causes violent crime that ravages our neighborhoods. Children of drug abusers are neglected, abused, and even abandoned. The only beneficiaries of this war are organized crime members and drug dealers.
<span>The United States has focused its efforts on the criminalization of drug use and trafficker's coming from Mexico. The government has spent billions of dollars trying to get rid the supply of drugs coming into our country. These intervention efforts and law enforcement attempts to control the drugs have not been successful nor have they met with decreases in the availability of drugs in America. There are actually more drugs now than ever before! Apart from being super expensive, drug law and drug enforcement has been counterproductive, it does not work. Our current drug laws need to be reviewed and revamped so that they are more effective or are a deterrent to those to bring drug into the US. The United States needs to shift spending from law enforcement and penalization to education, treatment, and prevention.</span>
Answer:
<h2>The Tri-Chromtic theory</h2>
Explanation:
The Tri-chromatic theory is based on the assumption that the three classes of cone receptors sub serve the colour vision. This theory dates back to 18th century and was popular during the first half of 20th century and was often used against the opponent processes theory. It was also known as Young-Helmholtz theory of colour vision, according to this theory there are three receptors in the retina that are responsible for the perception of colour. These receptors have different sensitivity level. Blues ones are the most sensitive and the red ones the least. But to perceive the colour needs the interaction between at least two photo receptors. Then the three colours are combined to form any colour in the visible spectrum.
Answer:
Have a stronger sense of identity by the young adulthood phase of life
Explanation:
Answer: Those who studied alone were exposed to the CONTROL condition.
Explanation: In an experiment, there are usually 2 conditions.
1.) The Natural condition
2.) The controlled condition
In this case, the controlled condition, the researcher is testing one person at a time as against testing with a group of people. This is to ensure that the researcher can adjust the conditions of the other experiment by studying just one person at a time.