642469
Beschreibung
Quiz von Charlotte Joseph, aktualisiert more than 1 year ago
|
Erstellt von Charlotte Joseph
vor fast 11 Jahre
|
|
Frage 1
Frage
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:
Antworten
-
Sample
-
Statistic
-
Population
-
Parameter
Frage 2
Frage
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:
Antworten
-
Sample
-
Statistic
-
Population
-
Parameter
Frage 3
Frage
Although research questions typically concern a ______ research study typically examines a ______.
Antworten
-
Sample, population
-
Statistic, sample
-
Population, sample
-
Parameter, Population
Frage 4
Frage
Statistical methods that use samples to answer general questions bout a population are called _______.
Antworten
-
Parameters
-
Statistics
-
Descriptive statistics
-
Inferential statistics
Frage 5
Frage
Statistical techniques that summarise, organise and simplify data are classified as ________.
Antworten
-
Population statistics
-
Sample statistics
-
Descriptive statistics
-
Inferential statistics
Frage 6
Frage
In an experiment, the researcher manipulates the _______ variable and measures changes in the ________ variable.
Antworten
-
Population, sample
-
Sample, population
-
Independent, dependent
-
Dependent, independent
Frage 7
Frage
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?
Antworten
-
Preschool children
-
Colour of the room
-
Amount of aggression
-
The children's play
Frage 8
Frage
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?
Antworten
-
The medication
-
The placebo
-
Blood pressure
-
The individuals given the medication
Frage 9
Frage
A hypothesis test is ______.
Antworten
-
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
Frage 10
Frage
The null hypothesis _______.
Antworten
-
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
Frage 11
Frage
The null hypothesis ______.
Antworten
-
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
Frage 12
Frage
The final step of hypothesis testing is to ______.
Antworten
-
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
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.