Statistique Et Méthodologie De La Recherche Test

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

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

The regression equation always passes through:

The percent of total variation of the dependent variable Y explained by the set of independent variables X is measured by

The graph showing the paired points of (Xi, Yi) is called:

If Y = 2 – 0.2X, then the value of Y intercept is equal to:

Inferential statistics enable you to :

The dependent variable is also called except one:

The coefficient of determination (r2) is

A scatterplot is a ?

Inferential statistics are useful for:

The measure of how well the regression line fits the data is the:

51. What is the slope of the line y = -3.4x – 2.5?

If the coefficient of determination is 0.81, the correlation coefficient:

A discrete variable is:

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

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

If all the plotted points in a scatter diagram lie on a single line, then the correlation is :

The coefficient of correlation

A process by which we estimate the value of dependent variable on the basis of one or more
independent variables is called:

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

My estimated regression line is Y = 17 + 4X. The intercept is equal to:

If the value of any regression coefficient is zero, then two variables are:

If regression line of Y= 5, then value of regression coefficient of Y on X is:

In simple linear regression model Y = α + βX + ε where α and β are called

The signs of regression coefficients and correlation coefficient are always:

Quantitative data refers to:

Scatter diagram is considered for measuring :

A perfect positive correlation is signified by:

If the slope of the regression equation y = bo + b1x is positive, then

The null hypothesis states the means are:

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

Scatter diagram helps us to :

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

31. The value of the coefficient of correlation r lies between:

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

The purpose of simple linear regression analysis is to:

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

Which of the following statements is true regarding a sample?

The mean of a sampling distribution of a sample statistic is called :

Relationship between correlation coefficient and coefficient of determination is that?

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

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

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

Which of the following requirements for a scientific report writing may depend on your
institution (EXCEPT ONE)?

To compare three independent means we use:

If a researcher conducts a study in which the reading ability of a class of 20 second graders is
tested at the beginning and at the end of the year, the appropriate statistical procedure to
analyze the results would be:

if the correlation coefficient r = 0.5 then the coefficient of determination is?

In the regression equation Y = a + bX, where a and b are called:

R2 is used in regression analysis to:

The range of regression coefficient is:

An r value of 0.80 indicates:

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