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

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

3) The term regression was used by:

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

5) The coefficient of determination, r2, indicates:

6) Correlation analysis aims at :

7) Which of the following statements is false?

8) The coefficient of determination (r2) is

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

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

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

12) An r value of 0.80 indicates:

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

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

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

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

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

18) Inferential statistics enable you to :

19) A discrete variable is:

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

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

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

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

25) Correlation analysis is used to:

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

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

29) The null hypothesis states the means are:

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

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

33) Which of the following statements is true?

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

35) A qualitative variable:

36) A scatterplot is a ?

37) Computers are essential for quantitative data analysis because?

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

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

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

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

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

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

44) The correlation coefficient is used to determine:

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

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

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

48) The regression equation always passes through:

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

51) In descriptive statistics our main objective is to:

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

53) 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:

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

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

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

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

58) 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

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

60) 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:

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

63) A perfect positive correlation is signified by:

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

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

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

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

69) To compare two means we use:

70) The dependent variable is also called except one:

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

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

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

75) 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’:

76) R2 is used in regression analysis to:

77) Quantitative data refers to:

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

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

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

81) Scatter diagram is considered for measuring :

82) The two forms of t-test are:

83) The null hypothesis states the means are:

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

85) Inferential statistics are useful for:

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

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

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

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

92) 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:

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

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

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

97) Bivariate Data are the data collected for :

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

99) In correlation both variables are always?

100) Scatter diagram helps us to :

101) Inferential statistics enable you to :

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

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

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

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

106) The range of regression coefficient is:

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

109) Correlation and regression are concerned with ?

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

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

112) Two variables have a positive association when?

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

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

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

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

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

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

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

120) A t-test is used to compare:

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

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

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

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

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

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

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

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

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

130) The coefficient of determination is the?

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

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

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

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

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

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

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

138) A scatter plot?

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

140) Internal “validity” refers to:

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

142) To compare three independent means we use:

143) The coefficient of correlation