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What is the sample variance of y

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Reference no: EM132464949

X is the number of hours spent studying, Y is the score on the exam. There are 24 observations.

X=180, Y=30, (Xi-Xbar)2=37,000, (Yi-Ybar)2= 42,000, (Xi-Xbar)(Yi-Ybar)= -27,000

  1. What is Xbar?
  2. What is the sample variance of Y?
  3. What is the sample standard deviation of Y?
  4. What is the value of Beta1hat?
  5. What is the meaning of Beta1hat in this regression?

Reference no: EM132464949

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