Elementary Statistics: A Step By Step Approach (10th Edition)

Chapter 10

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An explanatory variable is also known as an ... more

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An explanatory variable is also known as an ... more

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Continuous quantitative variable. ; Both dependent... more

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Continuous quantitative variable. ; Both dependent... more

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 A scatter plot is a graph which shows the ... more

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In a scatter plot, for each pair of data set ... more

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No,after changing the distance between the ... more

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A positive association defines the relationship ... more

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A positive association defines the relationship ... more

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The condition of brakes, driver response time, ... more

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0.966 ; The correlation determines whether a ... more

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The null hypothesis states that there is no ... more

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It interprets that the change in one variable also... more

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It is measured by the correlation coefficient.If ... more

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; The sample correlation coefficient,   is a ... more

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; The sample correlation coefficient, written as... more

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The positive correlation interprets that the value... more

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The price and the demand, volume, and pressure ... more

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Scatter plot.It shows the degree and nature of the... more

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Pearson product-moment correlation coefficient ; ... more

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-test. ; Consider the bivariate samples drawn ... more

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No.The correlation does not depict causation, it ... more

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Both the values are the same. ; There are 6 pairs ... more

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As there exists a perfect linear relationship ... more

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Do not reject the null hypothesis i.e. there is no... more

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; A regression line is used to describe the ... more

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Slope indicates that for an unit increase in ... more

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; The equation that represents the relationship ... more

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; The equation that represents the relationship ... more

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The conclusions may be false if the ... more

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A scatter plot should be plotted and the ... more

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The sample should be random.The dependent variable... more

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; The equation that represents the relationship ... more

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; The equation that represents the relationship ... more

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For a line of best fit, the sum of squares of the ... more

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or ; The measure of the extent of a linear ... more

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If is negative, will be negative and if is ... more

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If the value of approaches or , the data points ... more

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Predictions become more accurate, as approaches 1... more

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The average value of the dependent variable, i.e... more

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100.848 ; The correlation coefficient between and... more

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The line of regression cannot be fitted as the ... more

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1645.428 ; The correlation coefficient between ... more

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30.7 ; The correlation coefficient between and ... more

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251.42 ; The correlation coefficient between and... more

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There is an insignificant linear relationship ... more

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As is insignificant, regression should not be ... more

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          23.6 ; The correlation coefficient ... more

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82.5 ; The correlation coefficient between and ... more

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22.309 ; The correlation coefficient between and... more

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. ; The correlation coefficient between and each... more

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63.831 ; The correlation coefficient between and... more

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; The correlation coefficient between and each ... more

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62    ; The correlation coefficient between and ... more

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There is an insignificant linear relationship ... more

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733 ; The correlation coefficient between and ... more

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The regression line of on can not be determined ... more

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...Do not reject the null hypothesis as .There is ... more

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...Do not reject the null hypothesis as . There is... more

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The value of and the predicted value of after ... more

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Substitute the value of , and in the equation ... more

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Substitute the value of the standard deviation of... more

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Product moment correlation is a measure that is ... more

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; The unexplained variation defines the sum of ... more

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; Consider and as two bivariate variables where... more

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; Consider and as two bivariate variables where... more

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; In statistical hypothesis, the critical value ... more

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; The variation of the dependent variable that is... more

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; The standard deviation of the observed values ... more

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; The value of the test statistic is a number ... more

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For a two tailed test the the null hypothesis will... more

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Explained variation is employed to measure the ... more

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The unexplained variation is employed to measure ... more

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By total variance of a regression line, it means ... more

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The amount of variation in the dependent variable ... more

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. ; Consider is the independent variable and is ... more

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The amount of variation in the dependent variable ... more

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; The coefficient of nondetermination measures ... more

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  variation in is explainable by the variable . ... more

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variation in is explainable due to variable . ... more

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variation in is explainable due to variable . ... more

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variation in is explainable due to variable . ... more

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variation in is explainable due to variable . ... more

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variation in is explainable due to variable . ... more

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The standard error is the estimate of the standard... more

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; The regression equation is: .Substitute each ... more

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; The regression equation is: .Substitute in the... more

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; The regression equation is: .Substitute in the... more

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The standard error can not be calculated, as the ... more

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; Linear regression is used to obtain a ... more

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; Linear regression is used to obtain a ... more

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; Linear regression is used to obtain a ... more

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The prediction interval can not be calculated, as ... more

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Earning per year, years after HS. ; The dependent... more

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Number of M and S courses taken.Weekly working ... more

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NormalityEqual varianceLinearityNon-... more

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The earning of the individual per year after ... more

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; The regression equation of the prediction is ... more

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Strong positive relationship between the ... more

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; The multiple correlation coefficient measures ... more

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; The coefficient of determination is .The ... more

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The value of the is It interprets that of the ... more

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The and courses have higher coefficients so more... more

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The simple linear regression and multiple ... more

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represents Slope; represent Partial regression ... more

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The relationship between all the variables is ... more

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NormalityEqual varianceLinearity ... more

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The individual correlation coefficient is smaller ... more

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; Multiple regression is used to obtain the ... more

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; Multiple regression is used to obtain the ... more

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; Multiple regression is used to obtain the ... more

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; Multiple regression is used to obtain the ... more

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; Multiple regression used to obtain the ... more

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Multiple correlation coefficient is the measure of... more

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; Multiple correlation coefficient is the measure... more

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The coefficient of multiple determination or is ... more

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; Consider, is the population correlation ... more

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- test of significance. ; The - test of ... more

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An adjusted or removes any bias in which occurs... more

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0.468 ; The regression equation is .The regression... more

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2.89 ; The regression equation is written as .The ... more

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; A confidence interval can be obtained using ... more

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; A confidence interval can be obtained using ... more

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22.01 ; Multiple regression is the form of ... more

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0.873 ; The coefficient of multiple determination ... more

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0.643 ; The regression analysis where there are ... more

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FalseAs the value of increases, the value of ... more

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The linear correlation coefficient is a ... more

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A statistical measure of the strength of the ... more

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False, The association can be affected by various ... more

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FalseIt is possible to have a significant ... more

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False.In multiple regression, there is more than ... more

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The statistical measure of the strength of the ... more

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Consider as the population correlation ... more

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Consider as the population correlation ... more

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The equation of the regression line is where is ... more

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The measure which is used to determine the ... more

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scatter plot ; The scatter plot is the graphical ... more

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Independent ; The general equation of linear ... more

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; The measure which is used to determine the ... more

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slope ; The measure which is used to determine the... more

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Line of best fit. ; The line of best fit is the ... more

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; The measure which is used to determine the ... more

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1.129 ; The equation of the regression line is .... more

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29.495 ; The equation of the regression line is .... more

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; The value of and is 59 and 6 respectively. ... more

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217.5 ; If the correlation coefficient is not ... more

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119.9 ; The equation of the regression line is . ... more

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0.729 ; The value of , , is 0.561, 0.714 and 0.... more

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0.439 ; The value of , and is 8, 2 and 0.774 ... more

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Scatter plot is the graphical representation of ... more

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; Multiply 1 and 10 to obtain for the first row ... more

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The regression line equation fits well, as the ... more

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10.00030.47760.77880.903101.000121.079151.176 ; An... more

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; Consider as the predictor variable and as the... more

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Plot each response variable in the vertical axis ... more

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fits the data better compared to that of , as the... more

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Correlation coefficient between and is slightly ... more

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Logarithmic curve. fits the data better compared ... more

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Yes  ; Consider , the price as the predictor ... more

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No, they are not linearly related.A regression ... more

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No, they are not linearly related.Positive.... more

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Yes, they are linearly related. ; Consider , the ... more

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The correlation between E and M marks is the ... more

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Yes, they are linearly related. ; Consider , the ... more

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