I If We Do Not Reject the Null Hypothesis Based

question 29

Multiple Choice

i. If we do not reject the null hypothesis based on sample evidence, we have proven beyond doubt that the null hypothesis is true. ii. A test statistic is a value determined from sample information collected to test the null hypothesis.
iii. The region or area of rejection defines the location of all those values that are so large or so small that the probability of their occurrence under a true null hypothesis is rather remote.

• A) (ii) and (iii) are correct statements but not (i).
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (i) and (ii) are correct statements but not (iii).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Concentration Ratio

A measure of the total output produced in an industry by a given number of firms, usually the largest in the industry, indicating the degree of market concentration.

Herfindahl-Hirschman Index

A measure used to calculate the level of competition within an industry, represented by the sum of the squares of the market shares of all firms in the industry.

Japanese Companies

Entities based in Japan, engaged in commercial, industrial, or professional activities.

Oligopolized Industry

A market structure characterized by a few firms that have significant control over market prices and competition.