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3. Wau Shop company recently launched their new online shopping platform. The top management of the company decided to evaluate the user's satisfaction by using Post- Study System Usability Questionnaire (PSSUQ) to their new customers once they finished a transaction on the website. PSSUQ used a 7-point Likert Scale (1 - strongly disagree and 7 - strongly agree) to calculate the result which is calculated by averaging the scores from the 7 points of the scale. The answer of participant can be calculated according to: Overall: the average scores of questions 1 to 16 System Usefulness (SYSUSE): the average scores of questions 1 to 6 Information Quality (INFOQUAL): the average scores of questions 7 to 12 Interface Quality (INTERQUAL): the average scores of questions 13 to 15 Haikal is a new user of the Wau Shop System. After checking out few items in the cart, he was asked to finish a questionnaire which he answered. The PSSUQ questions with his answers are tabulated in Table 1. Table 1. Haikal's PSSUQ answer PSSUQ Question Number 2 3 4 5 6 7 N/A 1 W N 4 5 . 6 7 8 . 9 10 . 11 12 13 14 15 16 Answer the following questions. a) Calculate the score of Overall, System Usefulness (SYSUSE), Information Quality (INFOQUAL), and Interface Quality (INTERQUAL) of Haikal's answer in Table 1.0. Show the calculation process for each sub-scale. Is Haikal satisfied with Wau Shop System? Explain. (10 marks)b) Based on results in (a), state the sub-scale that is used to evaluate Haikal's satisfaction on the information provided by the website and interpret its result. Suggest ONE (1) way to improve the quality of information in Wau Shop System. (5 marks) C) Assume that Haikal is a colour-blind user. Suggest FIVE (5) ways to improve colour accessibility on Wau Shop for colour-blind users. (10 marks)