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Regression, Correlation and Hypothesis Testing

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Question 53

Davina wants to test to see if there is a correlation between the number of letters in someone's name and their salary.

She calculates the product moment correlation coefficient between these two variables for a random sample of 40 people and obtains r=−0.289r = -0.289r=−0.289

Carry out a suitable test to investigate Davina's belief at a 5% level of significance.

State clearly

  • your hypotheses
  • your critical value
[3]

Regression, Correlation and Hypothesis Testing Questions

  1. A Level
  2. /Maths
  3. /Regression, Correlation and Hypothesis Testing