Write a research question that can be explained with a correlation
Q: positive linear correlation pegative linear correlation
A: 1. Given: Regression equation y^=0.00014x+2.53 As, the slope is positive, so the correlation will be…
Q: John used the formula for calculating the linear correlation coefficient r and got the value 1.3284.…
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Q: a) Construct a scatter plot for the data. Do the data appear to have a positive correlation, a…
A: a) Steps to plot Scatter Plot on Excel Enter the data in the excel sheet Go to insert and click…
Q: An occupational therapist (OT) is comparing two different treatments to see which is more effective…
A: we have two groups one consisting of participants A, B, C, D and the other treatment is on…
Q: 48 What is a good estimate of the correlation coefficient for the scatterplot? 0.9 0.5 -0.9 -0.5 Y…
A: Need to estimate the correlation coefficient Here some examples for correlation coefficient
Q: Describe the purpose of scatter diagrams, and discuss how you would determine whether positive,…
A: Scatter diagrams are useful to determine the relationship between two variables. The relationship…
Q: suppose you are given the four correlation coefficient values below. Determine which one represents…
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Q: You wish to determine if there is a positive linear correlation between the age of a driver and the…
A: Given : X Y 18 35 38 26 18 23 57 36 64 29 80 29 53 36
Q: An instructor finds that there is a tendency for students who send more text messages during class…
A: Correlation coefficient : it denotes by r Value of correlation coefficient define strength of…
Q: Which words can be written for the blank part in the sentence? "Correlation analysis is used to…
A: A statement is given.
Q: Select the statistic test that best fits each description. Study examining how much of the variation…
A: Regression:Regression analysis explains whether two variables are related or not and correlation…
Q: You are a researcher who is interested in how watching television influences children's performance…
A: The question is about correlation and regression Given :
Q: An instructor teaching an 8 am class randomly samples a group of students who regularly attend class…
A: Generally Coffee tends to reduce the amount of sleep a person gets. So, we expect that more the…
Q: A researcher is interested in determining whether age influences the level of depression experienced…
A: 1.The dependent variable is a variable or a characteristic of interest considered by the…
Q: Determine which plot shows the strongest inear correlation.
A: The scatterplot is used to represent the relationship between two variables.
Q: Depression accounts for 16% of the variance in substance use in a measure given to college students.…
A: Given, coefficient of determination (r 2) =16% =0.16 Correlation coefficient (r)=?
Q: Predict the type (positive, negative, no) and strength of correlation (strong, weak) for the…
A: Identify the type of correlation between the variables below.
Q: Assume you get a new job as a coach for a sports team, and one of your first decisions is to choose…
A: Confidence Interval: It is a range of values in which the required measure can be in with some level…
Q: recent survey of Psychology majors finds that the more “real world” experience students gained, the…
A: A recent survey of Psychology majors finds that the more “real world” experience students gained,…
Q: State whether the following statement is true or false: “The correlation between shoe size and…
A: Correlation measures the strength of association. According to the provided information, the…
Q: Suppose two negatively associated variables have a coefficient of determination of 63%. Find the…
A: Given,.Also, the variables are negatively associated.To find the value of correlation.
Q: The more hours per week that full-time college students tend to work, the lower their GPA tends to…
A: Let x be the number of hours per week that full-time college students tend to work and y be the GPA…
Q: A researcher reports that there is no consistent relationship between grade point average and the…
A: Correlation:The degree of association or strength between two or more variables is called…
Q: Use the data values in the table below to calculate the correlation between the variables x and y.…
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Q: You might expect the correlation between the horsepower of new cars and their gas mileages in miles…
A: Given, The statement is the correlation between the horsepower of new cars and their gas mileages in…
Q: Identify if the following correlation. Describe if it is strong, weak, or no correlation. Then…
A: In this case we need to identify the correlation is positive or negative.
Q: ou would expect ______ between the number of hours of sleep per day and age for children between the…
A: Correlation measures the strength of the linear relationship.
Q: 14.10 Measuring mice. For a biology project, you measure the tail length (millimeters) and weight…
A: Correlational tells us about the relation between variables and is in range -1,1. a) When we are…
Q: Which plot indicates a correlation of 0.7? Y & R 8 50 T 10
A: Here, first figure shows negative correlation because trend line goes negative axis.
Q: a. Which is the explanatory and which is the response variable? b. According to the scatterplot…
A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Hedges' correction 2.67686 .416 -.294 1.1 Glass's delta 3.31442 .336 -.399 1.C e.- What is the…
A: the null and research hypotheses is correct. The null hypothesis states that there is no difference…
Q: Which scatter plot shown has the strongest negative correlation?
A: Correlation coefficients: Correlation coefficients (r) are used to measure the strength of the…
Q: Suppose the correlation between height and weight for adults is +0.80. What proportion of the…
A: From the provided information,Correlation between height and weight for adults (r) = +0.80
Write a research question that can be explained with a
a. Do you have an IV?
b. Do you have a DV?
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Solved in 2 steps
- Assume the correlation coefficient between advertising dollars spent and sales is .78. How much of the variability in sales is explained by the relationship between sales and advertising dollars? a. 39.16% b. 60.84% c. 78% d. 22%Based on the given scatter diagram, choose the correct statement. a. It is a positive correlation. The more time an individual spends running, the higher their body fat tends to be. b. It is a positive correlation. The more time an individual spends running, the lower their body fat tends to be. c. It is a negative correlation. The more time an individual spends running, the higher their body fat tends to be. d. It is a no correlation. The amount of time an individual spends running has no correlation with his/her body fat tends to be. e. It is a negative correlation. The more time an individual spends running, the lower their body fat tends to be.Which r is the strongest correlation? O -0.8 O-0.18 O-0.09 O 0.711 O 0.4
- Assume that you have paired values consisting of heights (in inches) and weights (in lb) from 40 randomly selected men. The linear correlation coefficient r is 0.567. Find the value of the coefficient of determination. What practical information does the coefficient of determination provide? Question content area bottom Part 1 Choose the correct answer below. A. The coefficient of determination is 0.321. 32.1% of the variation is explained by the linear correlation, and 67.9% is explained by other factors. B. The coefficient of determination is 0.679. 67.9% of the variation is explained by the linear correlation, and 32.1% is explained by other factors. C. The coefficient of determination is 0.321. 67.9% of the variation is explained by the linear correlation, and 32.1% is explained by other factors. D. The coefficient of determination is 0.679. 32.1% of the variation is explained by the linear correlation, and 67.9% is…The more serving of fruits and vegetables that people tend to eat during the week, the lower their levels of cholesterol. What type of correlation vegetables eaten and cholesterol levels? A positive B negativeWhat is a reason why correlation does not imply causation? O Because correlations are not based on data. O Because you do not know if X or Y occurred first. O There could be a third variable that explains both X and Y. O Both b and c
- There is a negative correlation between the average litres of wine consumed by residents of a country and the incidence of national coronary deaths. Explain why correlation in this case does not imply causation by suggesting a third variable z that explains the correlation. Is z a common response or a confounding variable? Draw a digraph illustrating the between x, y, and zAssume that you have paired values consisting of heights (in inches) and weights (in lb) from 40 randomly selected men. The linear correlation coefficient r is 0.506. Find the value of the coefficient of determination. What practical information does the coefficient of determination provide? Choose the correct answer below. O A. The coefficient of determination is 0.256. 25.6% of the variation is explained by the linear correlation, and 74.4% is explained by other factors. O B. The coefficient of determination is 0.744. 25.6% of the variation is explained by the linear correlation, and 74.4% is explained by other factors. O C. The coefficient of determination is 0.744. 74.4% of the variation is explained by the linear correlation, and 25.6% is explained by other factors. O D. The coefficient of determination is 0.256. 74.4% of the variation is explained by the linear correlation, and 25.6% is explained by other factors.
