In a random sample of 32 people at a frozen yogurt shop, it was found that they ordered an average of 8.2 ounces with a standard deviation of 1.8 ounces. Construct a 90% confidence interval for the average number of ounces ordered from this frozen yogurt shop. a. Which parameter are you estimating? Select an answer v b. What is the point estimate? Select an answer c. Check all of the requirements that are satisfied. random O the I distribution is normal since n > 30 O the i distribution is normal since the a distribution is normal O the p distribution is normal since np 2 10 and nq 2 10 d. Find the margin of error. (Round to 3 decimal places. You may use a critical value of to = 1.6955 or ze = 1.6449 - whichever is appropriate for this situation.) E = e. Give the confidence interval in interval notation (including parentheses with values separated by a comma) f. Select the correct conclusion. We are 90% confident that the average number of ounces ordered by the 32 people in the sample is between the two numbers found. O We are 90% confident that the average number of ounces ordered by all of the customers at this frozen yogurt shop is between the two numbers found. We are 90% confident that the proportion of ounces ordered by all of the customers at this frozen yogurt shop is between the two numbers found. O'We are 90% confident that the number of people that go to the frozen yogurt shop is between the two numbers found