Statistique Et Méthodologie De La Recherche Test

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

The most commonly used formula to describe linear relationship is?

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

In simple linear regression, the numbers of unknown constants are:

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

A scatter plot?

1. The method of least squares dictates that we choose a regression line where the sum of the
square of deviations of the points from the lie is:

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

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

The null hypothesis states the means are:

Inferential statistics enable you to (Except one):

The coefficient of determination is the?

The dependent variable is also called except one:

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

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:

Internal “validity” refers to:

Which of the following statements is true?

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

Computers are essential for quantitative data analysis because?

Two variables have a positive association when?

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

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

If a study is “reliable”, this means that:

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

A t-test is used to compare:

Bivariate Data are the data collected for :

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:

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

The coefficient of determination (sometimes known as the regression coefficient) enables you to:

In the regression equation y = bo + b1x1, b1 is the

The mean, median, mode and standard deviation are examples of:

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

Negative regression coefficient indicates that the movement of the variables are in:

A perfect positive correlation is signified by:

To compare three independent means we use:

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

If all the values fall on the same straight line and the line has a positive slope then what will be
the value of the correlation coefficient ‘r’:

The coefficient of determination (r2) is

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

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

Correlation analysis aims at :

A qualitative variable:

In regression analysis, the variable that is doing the predicting or explaining is

Inferential statistics are useful for:

Which of the following statements is false?

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

The two forms of t-test are:

A discrete variable is:

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

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

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

Which of the following statements is true regarding a sample?

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

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