Worksheet for Week 9 Tutorial @ (Refer to Week 3 worksheet.) The weekly closin- rices ofA . (Note: Numerical answers should be either exact or given to 4 d.p.) east 12 weeks are niven as follows. ---IIEI rthe population mean of weekly closing price. b) Interpret the interval found in ( ). 0) State the necessary assumption on the population distribution required in ( ). Over the past 104 weeks, the weekly closing price of Apple fell above USD170 in 20 weeks. d) Construct a 95% condence interval for the population proportion of weekly closing price falling above USD170. ' ' ' ' ' be 95% confident that the sample me the minimum sample srze requrred for us to . ' e) Eggogion of weekly closing price falling above USDli'O is correct to i0.035 of the population proportion. ' . ., Mt: sample size determination.)