Correlation & linear regression Guests rated 10 hotels (out of 100) and the ratings and room prices are as follows: Pric
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Correlation & linear regression Guests rated 10 hotels (out of 100) and the ratings and room prices are as follows: Pric
Correlation & linear regression Guests rated 10 hotels (out of 100) and the ratings and room prices are as follows: Price (£) 95 69 18 32 27 70 49 35 50 29 Score 74 63 28 33 37 58 38 43 50 31 a) Plot a scatter diagram to portray the data, taking Score as the dependent variable. (3 marks) b) Calculate the correlation coefficient and assess its value. (3 marks) c) Find the equation of the line of best fit using simple linear regression. (3 marks) d) Use the regression equation to predict the score that a mystery guest would give a hotel if the price of a room there were £60. (1 mark)
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