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19. What is the level of significance (alpha level) set at for this study?
a. .01 or 1%
b. .05 or 5%
c. .10 or 10%
d. An alpha level or level of significance chosen by the authors was not specifically mentioned in the text of the article.
LEVEL OF SIGNIFICANCE OR ALPHA LEVEL
It is the significance level α which is the probability of specifically making the wrong decision in a study when the null hypothesis is true. Alpha levels which is also known as “significance levels” are used in hypothesis tests of a study .
Option a is wrong as 0.1 is not mentioned by the researcher in the study as well as it cannot be calculated by given information
Option b is wrong as 0.5 is not mentioned by the researchers and it cannot be calculated by given information
Option c is wrong as 0.10 is not mentioned by the researchers and it cannot be calculated by given information .
Option d is the corect answer as the alpha level or level of significance that was chosen by the authors was not specifically mentioned in the text of the article so it can be said that option a,b and c are wrong . As the information is not given this option is the correct answer.