What can you conclude about the relationship between Mileage and Repair Costs if the correlation is...
Researchers find a strong positive correlation between coffee consumption and heart attacks. What can they conclude given this information? There is some relationship between coffee consumption and heart attacks. Drinking more coffee increases your risk of having a heart attack. People with weak hearts tend to crave coffee. Coffee and heart attacks have nothing to do with each other.
a. strong direct relationship b. no relationship c. moderate inverse relationship d. weak inverse relationship Using the following regression statistics select which one of the following best represents the relationship between the Height of the employee and their Salary? Regression Statistics: [Multiple R=0.867597; R Square = 0.752725; Intercept=28.45268; Inches=0.97656]
Assess whether the following correlation coefficients denote a very strong relationship, strong relationship, moderate relationship, weak relationship, or no relationship at all: a) -0.74 b) -0.12 c) +0.28 d) -0.93 e) +0.84 f) Now place these correlation coefficients in order from weakest to strongest relationship.
What can you conclude about the relationship between quality factor (Q) and the signal frequency?
a. no relationship b. moderate inverse relationship c. strong direct relationship d. weak direct relationship Using the following regression statistics select which one of the following best represents the relationship between monthly salary and cost of rent. Regression Statistics: [Multiple R=0.944744; R Square=0.892542; Intercept=1230.242; Rent=6.666983]
If ?(?) = 0.6, ?(?) = 0.2, and ?(?|?) = 0.2, what can we conclude about the relationship between A and B? If ?(?) = 0.23,?(?|?) = 0.56, what can we conclude about the relationship between A and B? If ?(?) = 1 3 , and ?(? and ?) = 0, what, if anything, can we conclude about the relationship between C and D?
TABLE: You have been asked to find the relationship between the dosage of a medication and its effect on blood pressure Amount of medication() Blood Pressure (y) 100 1. Find the correlation coefficient (a) 0.98 (b)-0.52 (c) 0,07 (d) 0.54 (6)0,95 2. What can you conclude (ie strong vs. weak, positive vs negative correlation) (a) Strong negative (b) Waak negative (e) no correlation (e) Strong positive (d) weak positive 3. (d)5.5 (e) 9 Find the slope(m) of the regression line:...
Part II 19. The gas mileage of an automobile first increases and then decreases as the speed increases. Suppose that this relationship is very regular, as shown by the following data on speed (miles per hour) and mileage (miles per gallon): Speed 30 40 50 60 70 Mileage 20 24 26 24 20 SPD 4 Mileage (a) Make a scatterplot of mileage versus speed. Mileage vs Speed Mileage 30 40 60 70 50 Speed 80 stenester even though there is...
If a researcher obtained an r of -0.85, what could you say about this correlation? - This is a strong negative correlation. O This is a strong positive correlation. O This is a weak negative correlation. O This is a weak positive correlation. Question 4 1 pts If a researcher wanted to see if cumulative GPA predicts GRE scores, which of the two variables would be the predictor variable? The number of participants None of the other answers O GRE...
(8 points) Match the following sample correlation coefficients with the explanation of what that correlation coefficient means. Type the correct letter in each box. 1. r = -.15 2. r = 0 3. r = 1 4. r = -97 A. a strong negative relationship between x and y B. no relationship between x andy C. a weak negative relationship between x and y D. a perfect positive relationship between x and y Note: You can earn partial credit on...