Statistique Et Méthodologie De La Recherche Test

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

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

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

An r value of 0.80 indicates:

Inferential statistics enable you to :

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 most commonly used formula to describe linear relationship is?

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

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

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

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

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

The coefficient of determination (r2) is

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

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

The null hypothesis states the means are:

The two forms of t-test are:

A scatterplot is a ?

All data points falling along a straight line is called:

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

A discrete variable is:

Scatter diagram is considered for measuring :

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

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 range of regression coefficient is:

A perfect positive correlation is signified by:

Method is used to infer that the results from a sample are reflective of the true population
scores. ?

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

In correlation both variables are always?

The dependent variable is also called except one:

The best fitting trend is one for which the sum of squares of error is?

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:

To investigate the association between two categorical variables we use:

A qualitative variable:

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

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

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

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

A Type I error occurs when the null hypothesis is:

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

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

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

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

R2 is used in regression analysis to:

The null hypothesis states the means are:

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

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

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

Two variables have a positive association when?

The coefficient of determination is the?

The correlation coefficient is used to determine:

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

A t-test is used to compare:

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

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