Aresearcher is conducting an experiment to evaluate a treatment that is expected to increase the scores for individuals in a population that is known to have a mean of μ = 80. the results will be examined using a one-tailed hypothesis test. which of the following is the correct statement of the null hypothesis?
a. μ> 80
b. μ=> 80
c. μ< 80
d. μ< =80

d. μ<=80

Step-by-step explanation:

Null hypothesis is statement written about the population parameter with respect to the objective of the test and against to the alternative hypothesis.

It always contains = , ≤ , ≥ signs.

Given : A researcher is conducting an experiment to evaluate a treatment that is expected to increase the scores for individuals in a population that is known to have a mean of μ = 80.

The results will be examined using a one-tailed hypothesis test.

Alternative hypothesis must be :

Then, null hypothesis will be :  [opposite to the alternative hypothesis.]

Hence, the correct answer is . d. μ<=80

a thesis statement is not a fact or a question

step-by-step explanation:

a thesis statement is a topic it is not a fact or a question

the correct answer is a) they believe they have a "just cause."

islamic terrorists justify their violent actions because they believe they have a "just cause."

every act of terrorism of islamic sects is done “in the name of allah”. that justifies their actions. islam people who commit those terrorist attacks are not afraid to die. that is why the attacks have horrible consequences. they know they are going to die and they are proud to do it because it is in the name of allah, so it is justified and is for a “good cause.”

since the very beginning of the conflict with israel, islam is fighting a “sacred war”, respecting the words stated in the qur’an. they fight against the domination of the western countries and to defend their occupied territories.