Statistics - Hypothesis Testing UPDATED
Exam Questions and CORRECT Answers
Hypothesis - CORRECT ANSWER - Tentative explanation for a phenomenon, or an
observation, or a problem that can be tested with further investigation
-Can be qualitative or quantitative
Types of Hypothesis and Characteristics - CORRECT ANSWER - Statistical, research,
correlational, causal
Statistical - CORRECT ANSWER - Formula statement to test for significance, the null
Hypothesis is always that there is no relationship between X and Y, the alternative hypothesis is
that there is a relationship between X and Y, may be either directional or non-directional
Research - CORRECT ANSWER - States as main focus of research study, stated that there
is a relationship between X and Y, not restricted to just tests of significance but also used to test
for association, correlation, and when appropriate causation
Correlational - CORRECT ANSWER - Used with observation research design and can
only specify covariation between variables
Causal - CORRECT ANSWER - Used with experimental research design and can test
causal linkages between independent and dependent variables
Qualitative - CORRECT ANSWER - Includes interviews, focus groups and ethnographic
studies
Quantitative - CORRECT ANSWER - Incluedes T-tests, Test of proportions, correlation,
regression and measures of association
Steps in Testing - CORRECT ANSWER - -Formulate the Null hypothesis
Exam Questions and CORRECT Answers
Hypothesis - CORRECT ANSWER - Tentative explanation for a phenomenon, or an
observation, or a problem that can be tested with further investigation
-Can be qualitative or quantitative
Types of Hypothesis and Characteristics - CORRECT ANSWER - Statistical, research,
correlational, causal
Statistical - CORRECT ANSWER - Formula statement to test for significance, the null
Hypothesis is always that there is no relationship between X and Y, the alternative hypothesis is
that there is a relationship between X and Y, may be either directional or non-directional
Research - CORRECT ANSWER - States as main focus of research study, stated that there
is a relationship between X and Y, not restricted to just tests of significance but also used to test
for association, correlation, and when appropriate causation
Correlational - CORRECT ANSWER - Used with observation research design and can
only specify covariation between variables
Causal - CORRECT ANSWER - Used with experimental research design and can test
causal linkages between independent and dependent variables
Qualitative - CORRECT ANSWER - Includes interviews, focus groups and ethnographic
studies
Quantitative - CORRECT ANSWER - Incluedes T-tests, Test of proportions, correlation,
regression and measures of association
Steps in Testing - CORRECT ANSWER - -Formulate the Null hypothesis
