Statistique Et Méthodologie De La Recherche Test

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

Scatter diagram helps us to :

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

Which of the following statements is true regarding a sample?

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

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

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

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

The coefficient of determination (r2) is

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

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

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

In regression analysis, the variable that is being predicted is

The null hypothesis states the means are:

The range of regression coefficient is:

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

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

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

The correlation coefficient, r, can take on any value within what range?

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

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

Correlation and regression are concerned with ?

Correlation analysis is used to:

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

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

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

Which of the following statements is false?

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

Because of the possibility of error in sampling from populations, researchers use:

The total variation explained by a regression model is given by:

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

Which of the following statements is true?

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

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

Which of the following statements regarding a researcher’s use of inferential statistics is
true?

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

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’:

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

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

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

The two forms of t-test are:

In correlation both variables are always?

To investigate the association between two categorical variables we use:

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

If the correlation coefficient is a positive value, then the slope of the regression line:

In simple regression equation, the numbers of variables involved are:

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:

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

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

What does it mean when you calculate a 95% confidence interval?

Which of the following are examples of continuous variables?

Quantitative data refers to:

A t-test is used to compare:

Inferential statistics enable you to :

The correlation coefficient is used to determine:

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:

Two variables have a positive association when?