QUESTION 1 A study is done on the time to complete an arithmetic test and the age of the participants. The data for a sample of eight participants are summarized below. Age (years) 15 20 28 17 23 25 26 18 Time (minutes) 20 26 36 20 25 29 31 23 The data collected was analysed and the output is shown below. Coefficients Standardized Unstandardized Coefficients Coefficients Model B Std. Error Beta t Sig 1 (Constant) 2.097 3.320 632 551 Age 1.123 .151 .950 7.424 .000 i. State the independent and dependent variable. (2 marks) ii. Comment on the value of coefficient of correlation. (1 mark) ifi. Compute the coefficient of determination. Hence, interpret the value in the context of the problem. (2 marks) iv. State the value of the slope and explain its meaning (2 marks) V. Based on the output, write the regression equation line. (1 mark) vi. Using the regression equation obtained in v), estimate the time to complete an arithmetic test when the age of participants is 28 years old. (2 marks)