.Compute the value pearson's r: 2.interpretation: 3.What linear equation best predicts the posttest given the pretest in math? 4.If a student made a pretest s orr of 43 in math, what grade wou

Q: For data that yielded an intercept of 3.66 and a slope of .15, what would be the appropriate linear…

A: GivenIntercept = 3.66slope =0.15

Q: Given the following information n= 9, Ey 88.8, Ey2 = 919.34, Ex = 86.7, Ex = 871.35, and Exy 992.92…

A: We will use the formula:

Q: Based on the data from six students, the regression equation relating number of hours of preparation…

A: Given regression equation is y^=67.3+1.07xr=0.224y=75.2

Q: The equation of a regression line between two variables x and y and the were computed as shown here.…

A: Given

Q: Given the following data pairs (x, y), find the regression equation. y2 ху 6. 4 36 12 4. 16 8. 25 15…

A: Given Data: ∑x=10     ∑y=16∑x2=30     ∑y2=74∑xy=38 n=4

Q: e five observations for two variables, and y. 3 5 13 18 20 54 56 49 24 13 mated regression equation…

A:

Q: Use the regression capabilities of a graphing calculator to find the equation of the line of best…

A: Regression:   It is a technique which is used to determine relationship between two or more…

Q: The following data points can be modeled as a linear equation: -11 -7 -3 -2 1. 4. 6. -2 2 3 9 The…

A: here in the given question, there are 7 observation.   Equation of the regression line is given as y…

Q: The relationship between weight (in kilograms) and gender was estimated as below in a linear format.…

A: The relationship between weight (in kilograms) and gender was estimated as, Weight=-10.23…

Q: Given are five observations for two variables, x and y. x;| 3 12 6 20 14 yi | 55 40 55 10 15 a.…

A:

Q: Given are five observations for two variables, x and y. 2 3 4 Yi 2 8 10 14 E(x, – *)(v, – 7) Y(x, -…

A: x¯ is given by sum of all values of xidivided by total number of observations So, x¯=1+2+3+4+55=3 y¯…

Q: Given are five observations for two variables, x and y. X; 1 4 2 8 10 14 2(x, - *)(Y, - F) d)…

A: Given that the table is  Xi      1 2 3 4 5 Yi      2 8 6 10 14 Given that the b1 =…

Q: Given that the slope of a regression line is 8.2 with x = 9 and y = 70 Find the value of x for y =…

A: The regression equation is used to predict the response variable using one or more explanatory…

Q: Use the given data to find the best predicted value of the response variable. Four pairs of data…

A:

Q: What is the equation for the regression line if n = 7, Ex= 69, Ey= 528, ry = 4754and x² = 825? ý =…

A:

Q: Based on data collected from various ing companies, a homrowner uses the linear model y-15150 to…

A:

Q: Use the given data to find the equation of the regression line. x 3 5 7 15 14 y 8 11 7 16 19

A: We want to fit regression line

Q: Given are five observations for two variables, x and y.   x 1 2 3 4 5 y 4 7 7 11 13 Develop the…

A:

Q: 1. Suppose that you have the following model and data to estimate the following equation Nobs YX,X,…

A: Excel Procedure: Enter X2, X3 and Y data in Excel Go to Data Click on Data Analysis>…

Q: Q2. If Y 1 30 2 25 3 20 15 10 6. 7 1 What type of relationship exists between the above set of…

A: Given:

Q: 4. In analyzing the relationship between two variables, a scatter plot can be used to detect which…

A: 4) Scatter plot gives idea about correlation.

Q: When evaluating model y • Bx+, the smaller the p-value is in testing B. the stronger the linear…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Explain why the hypothesis test H0:β1=0H0:β1=0 vs. Ha:β1≠0Ha:β1≠0 is called the test of no linear…

A: Hypothesis test for regression slope :  It is a hypothesis test to determine whether there is a…

Q: What is the value of y when x = 3, if the equation of the regression line is y 23.1 - 3.8x? 4.73 O b…

A: The linear regression model is y⏞=23.1-3.8x The value at x=3 is y⏞=23.1-3.8x=23.1-3.8×3=11.7

Q: A set of n = 20 pairs of X and Y scores has SS X = 10, SS Y = 40, and SP = 30. What is the slope for…

A: Given : The total pairs of X and Y scores is n=20. The sum of square of X, SSX=10 The sum of square…

Q: Given are five observations for two variables, x and y. x 5 11 8 23 18 y 50 47 50 10 23 Develop the…

A: The value of slope and intercept of the regression line are computed as follows:

Q: Of the following pairs of values.   X 3 4 5 6 7 8 9 y 12 8 10 6 7 3 3   Plot the…

A: Given data, X Y X*Y X*X 3 12 36 9 4 8 32 16 5 10 50 25 6 6 36 36 7 7 49 49 8 3 24 64…

Q: Given are five observations for two variables, x and y.   xi 1 2 3 4 5 yi 4 6 5 9 14   Develop…

A: Given data,   X Y X*Y X*X 1 4 4 1 2 6 12 4 3 5 15 9 4 9 36 16 5 14 70 25

Q: Use the following linear regression equation to answer the questions. x = 1.2 + 3.6x2 - 7.6x3 +…

A:

Q: Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 4 6 6 11 13   Develop the…

A: Given:  n=5 The formulas of b0 and…

Q: The equation of the regression line that relates hours per week spent in the tutor lab, xx, to GPA,…

A: (a)   Obtain the best prediction for the GPA of students who never go to the tutor lab.   From the…

Q: The table below shows the number of state-registered automatic weapons and the murder rate for…

A:

Q: The table below shows the number of state-registered automatic weapons and the murder rate for…

A: We have given data in the form of table which contains, the number of state-registered automatic…

Q: In the following case find the best predicted value of y given the following: x = 2.00, r = -0.567…

A: The regression equation formula is given below Y (hat) = a + b (x) From the given information, the…

Q: With the following data find the regression equation for the prediction of college GPA by the number…

A: Enter the given data into the excel as follows:

Q: Based on the data from six students, the regression equation relating number of hours of preparation…

A: The regression equation is y^=67.3+1.07x.

Q: 44. A regression analysis yields the line ŷ = 32 + 0.4x. One of the subjects, Racheal, has x = 60 a…

A: 44) Given data,Regression equation isy=32+0.4xRachel has x=60 and y =52If x=60 then the predicted…

Q: Use the computer output to estimate the intercept B 0 and the slope B 1. The regression equation is…

A: Given information The regression equation is Y=24.6+3.05X. Predictor Coef SE Coef T P…

Q: Given that the slope of a regression line is 7.5 with x = 9 and y = 66 Find the value of x for y =…

A:

Q: The line of best fit through a set of data isy=46.539+4.023xy=46.539+4.023x According to this…

A:

Q: A linear model for the data is B(t) = 26.9t + 689, 2 < t < 13, where t represents the year, with t =…

A: Definition used-      Equation of a line -                             y = mx+b…

Q: Given that the slope of a regression line is 8.5 with x = 9 and y = 74 Find the value of x for y =…

A: Given information Slope b = 8.5 x̅ = 9, y̅ = 74

Q: Use the regression capabilities of a graphing calculator to find the equation of the line of best…

A:

Q: Given are 3 observations for two variables, x and y. 1 3 6. 10 What is the estimated regression…

A: x y x.y x.x 1 9 9 1 3 10 30 9 6 5 30 36

Q: Q8. Calculator required. In a regression study to estimate the line Y = aX + b using a sample of X…

A: We have given that  Regression equation  Y= aX + b Sample size n =10 Where a = slope  and b=…

Q: In a study, the simple linear regression equation was found as y = - 2.65 + 3.23 * x. Accordingly,…

A:

Q: 3)The age and number of psychiatric treatment of 8 children in an grphanage are as follows. Estimate…

A:

Q: Given are five observations for two variables,  and .   1 2 3 4 5   3 7 7 10 14   d.…

A:

Q: Estimate the standard errors of the intercept and slope se B0 = ? (3 decimal places) se B1 = ? (3…

A: Given data: x y x2 y2 xy 15.5 2171 240.25 4713241 33650.5 23.75 1678.15 564.0625 2816187.423…

Q: 1. Find the linear equation that best fits the data shown. X 1.5 2.5 3.5 4.5 F(x) 3.4 9.7 10.3 15.4…

A: The given problem is to find the best fit linear equation for the given data. We can use least…

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.