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

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

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

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

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

6) 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:

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

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

9) In correlation both variables are always?

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

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

12) The coefficient of determination is the?

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

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

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

16) 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

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

18) The two forms of t-test are:

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

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

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

22) A perfect positive correlation is signified by:

23) The null hypothesis states the means are:

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

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

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

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

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

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

31) 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’:

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

33) To compare three independent means we use:

34) The coefficient of determination (r2) is

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

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

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

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

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

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

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

46) Bivariate Data are the data collected for :

47) R2 is used in regression analysis to:

48) To compare two means we use:

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

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

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

52) Correlation analysis aims at :

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

56) Scatter diagram helps us to :

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

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

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

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

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

62) Inferential statistics enable you to :

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

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

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

66) 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:

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

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

70) The null hypothesis states the means are:

71) 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:

72) Internal “validity” refers to:

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

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

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

76) An r value of 0.80 indicates:

77) A scatterplot is a ?

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

79) The correlation coefficient is used to determine:

80) Quantitative data refers to:

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

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

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

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

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

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

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

88) Correlation analysis is used to:

89) Computers are essential for quantitative data analysis because?

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

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

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

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

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

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

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

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

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

99) The term regression was used by:

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

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

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

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

105) A discrete variable is:

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

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

108) Two variables have a positive association when?

109) The regression equation always passes through:

110) Which of the following statements is false?

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

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

114) Which of the following statements is true?

115) Scatter diagram is considered for measuring :

116) Correlation and regression are concerned with ?

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

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

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

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

121) Inferential statistics are useful for:

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

123) The coefficient of determination, r2, indicates:

124) The coefficient of correlation

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

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

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

128) Inferential statistics enable you to :

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

130) In descriptive statistics our main objective is to:

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

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

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

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

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

137) A scatter plot?

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

139) The range of regression coefficient is:

140) A t-test is used to compare:

141) The dependent variable is also called except one:

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

143) A qualitative variable: