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SECTION A: STRUCTURED QUESTIONS Answer All the questions. This section carries 30 marks. A1 You are needed to collect information for the latest of 10 days of any ONE (1) of the criteria as follows: a. The gold price during Covid-19 pandemic in Malaysia. b. The petrol price diring Covid-19 pandemic in Malaysia. c. The unemployment rate during Covid-19 pandemic in Malaysia. From the information above, you are required: 1. To draw the trend of time series data. 2. To forecast using moving average methods for the upcoming three days. SECTION B: STRUCTURED QUESTIONS [CLOZ] Answer All Questions. Each carries 5 marks. This section carries 20 Marks. B1. Try to flip a coin for 20 times and record as follows: --- The number of getting surface. Based on the records in the table, what is the probability that: I. Getting head surface ll. Getting tail surface 32 A department store manager determines that a new billing system will be cost-effective only if the mean monthly account is more than RM 170. A random sample of 400 monthly accounts is drawn, for which the sample mean is RM 178. The accounts are approximately normally distributed with a standard deviation of RM 65. It is concluded that the new system will be cost-effective at a 5% significance level. I. State the null hypothesis and alternative hypothesis. H. Sketch the rejection region o