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

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

3) R2 is used in regression analysis to:

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

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

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

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

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

9) 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:

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

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

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

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

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

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

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

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

18) A scatterplot is a ?

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

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

21) The coefficient of determination (r2) is

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

23) The term regression was used by:

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

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

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

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

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

29) An r value of 0.80 indicates:

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

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

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

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

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

35) A scatter plot?

36) Inferential statistics are useful for:

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

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

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

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

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

43) Correlation and regression are concerned with ?

44) The null hypothesis states the means are:

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

46) The coefficient of determination is the?

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

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

49) 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:

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

51) A perfect positive correlation is signified by:

53) Computers are essential for quantitative data analysis because?

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

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

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

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

59) A t-test is used to compare:

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

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

62) 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:

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

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

66) The null hypothesis states the means are:

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

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

69) Inferential statistics enable you to :

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

71) The two forms of t-test are:

72) To compare two means we use:

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

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

76) Which of the following statements is true?

77) In descriptive statistics our main objective is to:

78) The coefficient of determination, r2, indicates:

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

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

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

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

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

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

87) Inferential statistics enable you to :

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

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

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

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

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

93) Correlation analysis is used to:

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

95) The correlation coefficient is used to determine:

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

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

98) A qualitative variable:

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

100) 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’:

101) Quantitative data refers to:

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

103) Correlation analysis aims at :

104) Scatter diagram is considered for measuring :

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

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

107) Bivariate Data are the data collected for :

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

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

110) Scatter diagram helps us to :

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

112) Which of the following statements is false?

113) Two variables have a positive association when?

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

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

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

117) Internal “validity” refers to:

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

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

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

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

123) The regression equation always passes through:

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

126) The range of regression coefficient is:

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

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

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

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

131) In correlation both variables are always?

132) 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

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

135) The dependent variable is also called except one:

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

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

139) To compare three independent means we use:

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

141) A discrete variable is:

142) The coefficient of correlation

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