2. Satisfied workers The managers of a large company wished to know the percentage of employees who feel "extremely satisfied" to work there. The company has roughly 24,000 employees. They contacted a random sample of employees and asked them about their job satisfaction, obtaining 437 completed responses. How does their study deal with the three Big Ideas of sampling?4. Satisfied respondents The company's annual report states, "Our survey shows that 87.34% of our employees are *very happy' working here." Comment on that claim. Use appropriate statistics terminology.6. Sampling satisfaction A company hoping to assess employee satisfaction surveys employees by assigning computer-generated random numbers to each employee on a list of all employees and then contacting all those whose assigned random number is divisible by 7. Is this a simple random sample?Review Normal Distribution The times required for Speedy Lube to complete an oil change service on an automobile are normally distributed with a mean of 11' minutes and a standard deviation of 2.5 minutm. a. What is the probability that a randomly selected customer will wait longer than 2i] minutes for an oil change? b. What is the probability that a randomly selected customer will wait between 15 and 21} minutes for an oil change? c. What is the probability that a randomly selected costomer will wait less than 1 l minutm for an oil change? d. Speedy Lube decides to offer half price oil changes for customers who have to wait too long for their service. If Speedy Lube does not want to give the discount to more than 3% of its customers, how long should it make the guaranteed time limit