2. (a) Observed P-value for a one-tailed hypothesis test is calculated as 0.02. Give an interpretation of this value. If you want to reduce the probability of committing Type I error, would you set the level of significance at 1% or 5%? Explain why. (5 marks) (b) A survey was conducted in which 480 students from Business School and School of Mathematics were asked the brand of tablet they used. The results were cross tabulated in the following table: Tablet Brand Business School School of Mathematics (i) State the appropriate hypothesis test to perform here. (ii) Perform the appropriate hypothesis test at the 5 percent signicance level to determine whether there is evidence of any relationship between the tablet brand and the Schools the students go to. Interpret the results. I.. I \\