Statistique Et Méthodologie De La Recherche Test

A perfect positive correlation is signified by:

The straight line graph of the linear equation Y = a + bX, slope is horizontal if:

If the Pearson Correlation Coefficient shows zero value, it means that:

The step in the data analysis process is (EXCEPT ONE):

R2 is used in regression analysis to:

A procedure used to select a sample of n objects from a population in such a way that each
member of the population is chosen strictly by chance, each member of the population is equally
likely to be chosen, and every possible sample of a given size, n, has the same chance of selection
is known as:

When the p-value is greater than 0.05 we can conclude that:

If you have 20 pairs of subjects what would be the degrees of freedom for a test of correlation
between the groups of scores?

The range of regression coefficient is:

The difference between regression analysis and correlation analysis is (except one):

Two variables have a positive association when?

All data points falling along a straight line is called:

When the p-value is less than 0.05 we can conclude that:

Which of the following statements is true regarding a sample?

The straight line graph of the linear equation Y = a + bX, slope will be downward If:

The degree of linear association between two metric scaled variables is measured by:

In correlation both variables are always?

The arithmetic mean of the two regression coefficients is greater than or equal to:

The predicted rate of response of the dependent variable to changes in the independent variable
is called:

Correlation and regression are concerned with ?

If the coefficient of determination is equal to 1, then the correlation coefficient:

A scatter plot?

Bivariate Data are the data collected for :

An example of an experimental study is a(n):

Inferential statistics are useful for:

Which part of written report that can answer the research question?

The coefficient of correlation

Inferential statistics is a process that involves all of the following EXCEPT:

In the regression equation Y = a+bX, the Y is called

A coefficient of correlation is computed to be -0.95 means that

To compare two means we use:

The coefficient of determination, r2, indicates:

If two variables, x and y, have a very strong linear relationship, then:

If the value of regression coefficient is zero, then the two variable are called:

In regression analysis, the variable that is being predicted is the:

If the correlation coefficient is 0.8, the percentage of variation in the response variable explained
by the variation in the explanatory variable is:

In the regression equation y = bo + bx, bo is the

The most commonly used formula to describe linear relationship is?

In regression analysis, if the independent variable is measured in kilograms, the dependent
variable:

If the plotted points in a scatter diagram are evenly distributed, then the correlation is :

An alternative to statistical techniques for analysis of data to find patterns and trends is?

The strength (degree) of the correlation between a set of independent variables X and a dependent variable Y is measured by

When correlation coefficient is 1, all the points in a scatter diagram would lie?

Let the coefficient of determination computed to be 0.39 in a problem involving one independent variable and one dependent variable. This result means that

If the plotted points in a scatter diagram lie from upper left to lower right, then the correlation
is :

Scatter diagram is considered for measuring :

2. A relationship where the flow of the data points is best represented by a curve is called:

When there is no linear correlation between two variables, what will the value of r be?

When the two regression lines are parallel to each other, then their slopes are:

If there is a very strong correlation between two variables then the correlation coefficient must
be:

Which Statistical software come with appropriate table, graph, and/or chart-building
features to easily convert tabular data into a variety of formats.?

In regression, the equation that describes how the response variable (y) is related to the
explanatory variable (x) is:

In regression analysis, the variable that is being predicted is

The slope of the regression line of Y on X is also called the:

In the regression equation Y = a +bX, a is called:

If two variables have a correlation coefficient of .30, what percentage of one variable is
accounted for by the other variable?

A scatterplot is a ?