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

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

3)

4)

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

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

7) Which of the following statements is false?

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

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

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

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

12) Internal “validity” refers to:

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

14) 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

15) Two variables have a positive association when?

16)

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

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

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

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

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

22) Which of the following statements is true?

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

24)

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

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

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

28) The two forms of t-test are:

29) A scatter plot?

30) Correlation analysis is used to:

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

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

33) To compare two means we use:

34) A scatterplot is a ?

35) 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:

36) The term regression was used by:

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

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

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

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

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

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

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

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

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

46) The coefficient of determination, r2, indicates:

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

48) A qualitative variable:

49) The null hypothesis states the means are:

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

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

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

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

54) Scatter diagram helps us to :

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

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

57) The regression equation always passes through:

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

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

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

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

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

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

64) The dependent variable is also called except one:

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

66)

67) To compare three independent means we use:

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

69) An r value of 0.80 indicates:

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

71)

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

73) The range of regression coefficient is:

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

75) R2 is used in regression analysis to:

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

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

78) Correlation and regression are concerned with ?

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

80) Scatter diagram is considered for measuring :

81) A discrete variable is:

82)

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

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

85) Correlation analysis aims at :

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

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

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

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

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

91) In correlation both variables are always?

92) Inferential statistics enable you to :

93)

94) The coefficient of determination is the?

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

96) In descriptive statistics our main objective is to:

97)

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

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

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

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

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

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

104) Inferential statistics are useful for:

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

106) 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’:

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

108)

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

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

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

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

113) 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:

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

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

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

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

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

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

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

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

122) The coefficient of correlation

123) Inferential statistics enable you to :

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

125) Computers are essential for quantitative data analysis because?

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

127) The null hypothesis states the means are:

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

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

130) 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:

131) A perfect positive correlation is signified by:

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

133) Quantitative data refers to:

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

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

136)

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

138) Bivariate Data are the data collected for :

139) A t-test is used to compare:

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

141) The correlation coefficient is used to determine:

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

143) The coefficient of determination (r2) is