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Observations were made for variables X and Y. Y is then transformed (Y=) and is given in the table below as Z. Use the information

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Observations were made for variables X and Y. Y is then transformed (Y=) and is given in the table below as Z. Use the information from the table to calculate and select the correct answers that follow. 1/ Waarnemings was verkry vir veranderlikes X en Y. Y word dan getransformeer (Y*) en word in die tabel hieronder as Z gegee. Gebruik die inligting in die tabel om die korrekte antwoorde wat volg, te bereken en te selekteer. Y 16 22 29 33 47 67 12 19 22 24 Z =log(Y+2) 1.26 1.38 1.49 154 1.69 1 84 1. Perform a simple linear regression of Z on X, and select the correct values for the intercept and the slope: // Doen 'n eenvoudige lineere regressie van Z op X en kies die korrekte waardes vir die afsnit en die helling: Z = * X 2. Predict the value of Y for X=25: // Voorspel die waarde van Y met X = 25: Y : 3. Is this an example of interpolation or extrapolation: // Is dit in voorbeeld van interpolasie of ekstrapolasie: Given X ~ N(6.4 , 14.44), Z~N(0,1); calculate the Z value for X = 7.5 (Round only your final answer to 2 decimal places). Gegee X ~ N(6.4 , 14.44), Z~N(0, 1); bereken die Z-waarde vir X = 7.5 (Rond net jou finale antwoord tot 2 desimale plekke)

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