b. QUESTION 3 and 4 Calculate and interpret in context a 98% confidence interval. For the interval, enter your answer as a proportion (decimal), with 3 places after the decimal. c. QUESTION 5 What does "98% confidence" mean in the context of this question? Note: we are looking for a definition here, not an interpretation. This is not the same as the previous question. d. QUESTION 6 How large a sample would we need to take if we wished to maintain a 98% level of confidence and have a margin of error of 4%? You should use the sample above as a pilot study.Question 2 For the situation below, identify the W's in the context of the problem and define the parameter (P). Five years ago, a large company found that 8% of its employees commuted to work by car. The company is interested in whether or not this proportion has changed. a. QUESTION 7 In the context of the problem, identify the W's. b. QUESTION 8 In the context of the problem, define the parameter.Part 2 Question 1 In 2021, we polled a random sample of 200 Canadians and found that 40 of them speak both French and English at a conversational level. Note that parts of this question require you to use the Z* for a given level of confidence. These values can be found from Table Z (and the bottom row of Table T) but some of the most used ones are provided here for your reference. Confidence Level 90% 95% 98% 99% Z 1.645 1.960 2.326 2.576 a. QUESTION 1 Is a normal model appropriate for this sampling distribution? Note that this is the same data used in Lab 8, so we know the Independence Assumption is met (you checked it last week). Is the sample size assumption met? State the name of the condition required for this assumption and check if it is met. QUESTION 2 Answer the original question: is a normal model appropriate? Explain briefly