642469
Descripción
Test por Charlotte Joseph, actualizado hace más de 1 año
|
Creado por Charlotte Joseph
hace más de 10 años
|
|
Pregunta 1
Pregunta
A researcher is interested in the eating behaviour of 5 year olds and selects a group to be tested in a research study. The group of 25 five year olds is a:
Respuesta
-
Sample
-
Statistic
-
Population
-
Parameter
Pregunta 2
Pregunta
A researcher is curious about the average IQ of registered voters in the state of Florida. The entire group of registered voters in Florida is an example of a:
Respuesta
-
Sample
-
Statistic
-
Population
-
Parameter
Pregunta 3
Pregunta
Although research questions typically concern a ______ research study typically examines a ______.
Respuesta
-
Sample, population
-
Statistic, sample
-
Population, sample
-
Parameter, Population
Pregunta 4
Pregunta
Statistical methods that use samples to answer general questions bout a population are called _______.
Respuesta
-
Parameters
-
Statistics
-
Descriptive statistics
-
Inferential statistics
Pregunta 5
Pregunta
Statistical techniques that summarise, organise and simplify data are classified as ________.
Respuesta
-
Population statistics
-
Sample statistics
-
Descriptive statistics
-
Inferential statistics
Pregunta 6
Pregunta
In an experiment, the researcher manipulates the _______ variable and measures changes in the ________ variable.
Respuesta
-
Population, sample
-
Sample, population
-
Independent, dependent
-
Dependent, independent
Pregunta 7
Pregunta
A researcher observed that preschool children playing in a red room showed more aggression than playing in a blue room. For this study, what is the independent variable?
Respuesta
-
Preschool children
-
Colour of the room
-
Amount of aggression
-
The children's play
Pregunta 8
Pregunta
In a study evaluating the effectiveness of a new medication designed to control high blood pressure, one sample of individuals is given the medicine and a second sample is given an inactive placebo. Blood pressure is measured for each individual. For this study, what is the dependent variable?
Respuesta
-
The medication
-
The placebo
-
Blood pressure
-
The individuals given the medication
Pregunta 9
Pregunta
A hypothesis test is ______.
Respuesta
-
A descriptive technique that allows researchers to describe a sample
-
A descriptive technique that allows researchers to describe a population
-
An inferential technique that uses the data from a sample to draw inferences about a population
-
An inferential technique that uses information about a population to make predictions about a sample
Pregunta 10
Pregunta
The null hypothesis _______.
Respuesta
-
States that the treatment has no effect
-
Is denoted by the symbol H1
-
Is always stated in terms of sample statistics
-
All of the choices are correct
Pregunta 11
Pregunta
The null hypothesis ______.
Respuesta
-
Concerns a population with an unknown mean
-
Is denoted by the symbol H0
-
Generally states that there is no effect, no change or no difference
-
All of the other choices are correct
Pregunta 12
Pregunta
The final step of hypothesis testing is to ______.
Respuesta
-
Locate the values associated with the critical region
-
Make a statistical decision about H0
-
Collect the sample data and compute the test statistic
-
State the hypotheses and select an alpha level
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.