Statistique Et Méthodologie De La Recherche Test

Which of the following are examples of continuous variables?

In correlation both variables are always?

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

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

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

The regression equation always passes through:

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

The coefficient of determination is the?

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

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

All data points falling along a straight line is called:

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

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

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

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

Which of the following statements is false?

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

The most commonly used formula to describe linear relationship is?

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

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

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

The coefficient of determination, r2, indicates:

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

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’:

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:

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

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

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

The null hypothesis states the means are:

An r value of 0.80 indicates:

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

Inferential statistics enable you to :

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

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

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

Quantitative data refers to:

A scatterplot is a ?

The dependent variable is also called except one:

Scatter diagram helps us to :

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

The coefficient of determination (r2) is

The correlation coefficient is used to determine:

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

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

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

Which of these is not one of the four main reasons for missing data?

To compare two means we use:

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

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

The coefficient of correlation

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 two forms of t-test are:

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

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

To investigate the association between two categorical variables we use:

Inferential statistics enable you to :