Question

A researcher wants to estimate the relationship between years of educational attainment (X) and the average yearly earnings of individuals (Y). For this, he collects data from a random sample of 109 individuals. From this data, he calculates the sample variances (S_X^2, S_Y^2) and the sample covariance (S_XY). If S_X^2 = 85.23, S_Y^2 = 175.76, and S_XY = 116.25, then the sample correlation coefficient will be . (Round your answer to two decimal places).

Name: A researcher wants to estimate the relationship between years of educational attainment (X) and the average yearly earnings of individuals (Y). For this, he collects data from a random sample of 109 individuals. From this data, he calculates the sample variances (SX^2, SY^2) and the sample covariance (SXY). If SX^2 = 85.23, SY^2 = 175.76, and SXY = 116.25, then the sample correlation coefficient will be . (Round your answer to two decimal places).
Uploaded: 2023-08-18T22:23:25-08:00
Duration: 1 min 43 s
Channel: Madhur L

          A researcher wants to estimate the relationship between years of educational attainment (X) and the average yearly earnings of individuals (Y). For this, he collects data from a random sample of 109 individuals. From this data, he calculates the sample variances (S_X^2, S_Y^2) and the sample covariance (S_XY). If S_X^2 = 85.23, S_Y^2 = 175.76, and S_XY = 116.25, then the sample correlation coefficient will be . (Round your answer to two decimal places).

A researcher wants to estimate the relationship between years of educational attainment (X) and the average yearly earnings of individuals (Y). For this, he collects data from a random sample of 109 individuals. From this data, he calculates the sample variances (SX^2, SY^2) and the sample covariance (SXY). If SX^2 = 85.23, SY^2 = 175.76, and SXY = 116.25, then the sample correlation coefficient will be . (Round your answer to two decimal places).

Added by Dale B.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Madhur L

08/18/2023

Step 1

We are given the following values: sx = 85.23 sy = 175.76 Sxy = 116.25 Now, we can plug these values into the formula: Show more…

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A researcher wants to estimate the relationship between years of educational attainment (X) and the average yearly earnings of individuals (Y). For this, he collects data from a random sample of 109 individuals. From this data, he calculates the sample variances (S_X^2, S_Y^2) and the sample covariance (S_XY). If S_X^2 = 85.23, S_Y^2 = 175.76, and S_XY = 116.25, then the sample correlation coefficient will be . (Round your answer to two decimal places).