You ask a small sample of 5 students what percentage score they obtained in a recent exam and how many hours they spent preparing for the exam. The data you obtained is summarised in the table below. Time spent studying (hours) 10 18 11 13 19 Exam score (out of 100) 52 76 64 55 94 You fit a least squares line to the data which can be used to predict exam scores from the time spent studying. You wish to conduct a statistical test to obtain evidence that the true population slope is greater than zero. You are going to conduct the test at the .10 level of significance. Find the critical value of the test statistic. (Provide your answer as a number rounded to 3 decimal places; your answer must be accurate within +0.0005.)

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