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

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

4) Quantitative data refers to:

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

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

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

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

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

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

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

12) The range of regression coefficient is:

13) The null hypothesis states the means are:

14) To compare two means we use:

15) Correlation analysis aims at :

16) The term regression was used by:

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

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

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

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

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

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

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

25) The coefficient of determination (r2) is

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

27) A scatter plot?

28) Inferential statistics enable you to :

29) To compare three independent means we use:

30) The correlation coefficient is used to determine:

31) The null hypothesis states the means are:

32) Correlation analysis is used to:

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

34) 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:

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

36) In correlation both variables are always?

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

38) The coefficient of determination is the?

39) 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

40) Inferential statistics enable you to :

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

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

44) R2 is used in regression analysis to:

46) 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’:

47) An r value of 0.80 indicates:

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

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

50) 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:

51) The coefficient of determination, r2, indicates:

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

53) Scatter diagram is considered for measuring :

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

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

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

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

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

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

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

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

63) The two forms of t-test are:

64) The coefficient of correlation

65) A perfect positive correlation is signified by:

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

67) In descriptive statistics our main objective is to:

68) Two variables have a positive association when?

69) Which of the following statements is true?

70) 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:

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

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

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

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

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

76) Internal “validity” refers to:

77) The dependent variable is also called except one:

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

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

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

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

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

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

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

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

87) Correlation and regression are concerned with ?

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

89) Computers are essential for quantitative data analysis because?

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

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

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

93) A scatterplot is a ?

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

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

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

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

98) A qualitative variable:

99) A t-test is used to compare:

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

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

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

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

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

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

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

109) The regression equation always passes through:

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

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

112) Bivariate Data are the data collected for :

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

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

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

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

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

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

119) Inferential statistics are useful for:

120) Which of the following statements is false?

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

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

123) Scatter diagram helps us to :

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

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

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

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

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

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

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

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

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

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

136) A discrete variable is:

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

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

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

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

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

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