A researcher is interested in whether the variation in the size of human beings is proportional throughout each part of the human. To partly answer this question they looked at the correlation between the foot length (in millimeters) and height (in centimeters) of 30 randomly selected adult males. The data is provided below. Use Excel to calculate the correlation coefficient r between the two data sets. Round your answer to two decimal places. Foot length (mm) Height (cm)244.9 159.2248.5 164.8248.1 173.7252.3 171.7251.6 164.6256.5 171.4240.3 179.7252.7 183.1259.7 183.2263.3 177.9245.7 181.6261.0 172.9256.6 185.2256.0 169.6254.7 169.0248.1 177.6255.9 181.9259.4 180.4277.6 173.0287.7 175.0281.2 189.6269.0 174.1288.4 176.1281.8 189.7289.1 182.7283.2 186.0292.5 177.8285.4 187.7287.5 190.5276.8 194.1 Provide your answer below: R=___
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.
A researcher is interested in whether the variation in the size of human beings is proportional throughout each part of the human. To partly answer this question they looked at the
244.9 159.2
248.5 164.8
248.1 173.7
252.3 171.7
251.6 164.6
256.5 171.4
240.3 179.7
252.7 183.1
259.7 183.2
263.3 177.9
245.7 181.6
261.0 172.9
256.6 185.2
256.0 169.6
254.7 169.0
248.1 177.6
255.9 181.9
259.4 180.4
277.6 173.0
287.7 175.0
281.2 189.6
269.0 174.1
288.4 176.1
281.8 189.7
289.1 182.7
283.2 186.0
292.5 177.8
285.4 187.7
287.5 190.5
276.8 194.1
Provide your answer below:
R=___
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