1) In correlation both variables are always?

2) The term regression was used by:

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

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

5) 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:

6) R2 is used in regression analysis to:

7) Computers are essential for quantitative data analysis because?

8) Scatter diagram is considered for measuring :

10) A scatterplot is a ?

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

12) The regression equation always passes through:

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

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

16) Which of the following are examples of continuous variables?

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

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

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

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

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

24) The value of the coefficient of determination (r2) ranges between

25) The coefficient of correlation

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

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

28) Inferential statistics enable you to :

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

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

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

32) Relationship between correlation coefficient and coefficient of determination is that?

33) The value we would predict for the dependent variable when the independent variables are all
equal to zero is called:

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

35) A qualitative variable:

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

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

38) Inferential statistics enable you to :

39) To compare three independent means we use:

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

41) To investigate the association between two categorical variables we use:

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

43) The null hypothesis states the means are:

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

45) In descriptive statistics our main objective is to:

46) All data points falling along a straight line is called:

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

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

49) Scatter diagram helps us to :

50) A Type I error occurs when the null hypothesis is:

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

52) Internal “validity” refers to:

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

54) Two variables have a positive association when?

55) In regression analysis, the variable that is being predicted is

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

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

59) To compare two means we use:

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

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

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

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

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

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

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

67) Correlation and regression are concerned with ?

69) The coefficient of determination (r2) is

70) A discrete variable is:

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

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

73) A statistical technique that develops an equation that relates a dependent variable to one or
more independent variables is called:

74) The degree of linear association between two metric scaled variables is measured by:

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

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

77) Which of the following statements is true regarding a sample?

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

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

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

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

83) An r value of 0.80 indicates:

84) A perfect positive correlation is signified by:

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

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

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

88) The coefficient of determination, r2, indicates:

89) The signs of regression coefficients and correlation coefficient are always:

90) Which of the following statements is true?

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

92) A t-test is used to compare:

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

94) 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:

95) The straight line graph of the linear equation Y = a + bX, slope will be downward If:

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

97) The range of regression coefficient is:

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

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

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

102) Which of the following statements is false?

103) A scatter plot?

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

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

106) The purpose of simple linear regression analysis is to:

107) The two forms of t-test are:

108) The coefficient of determination is the?

110) The null hypothesis states the means are:

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

112) Bivariate Data are the data collected for :

113) Quantitative data refers to:

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

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

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

117) 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

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

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

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

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

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

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

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

126) If there is a very strong correlation between two variables then the correlation coefficient must
be:

127) The most commonly used formula to describe linear relationship is?

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

129) Correlation analysis is used to:

130) 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:

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

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

133) 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’:

134) Correlation analysis aims at :

135) Inferential statistics are useful for:

137) The dependent variable is also called except one:

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

139) Inferential statistics enable you to (Except one):

140) The correlation coefficient is used to determine:

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

142) An alternative to statistical techniques for analysis of data to find patterns and trends is?

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