D Question 9 1 pts Assume that we want to construct a confidence interval. Determine whether you should use the t-distribution or the normal distribution to find it, based on the following information. In this problem, let n be the sample size. n = 23, the standard deviation is unknown, the population appears to be normally distributed O Normal Distribution O neither of the methods studied by us can be used O T-Distribution D Question 10 1 pts Assume that we want to construct a confidence interval. Determine whether you should use the t-distribution or the normal distribution to find it, based on the following information. In this problem, let n be the sample size. n = 200, the standard deviation is 15, the population appears to be skewed O Normal Distribution O neither of the methods studied by us can be used O T-Distribution D Question 11 1 pts Assume that we want to construct a confidence interval. Determine whether you should use the t-distribution or the normal distribution to find it, based on the following information. In this problem, let n be the sample size. n = 25, the population standard deviation is known, the population appears to be very skewed O t-distribution O neither of the methods studied by us can be used O Normal Distribution D Question 12 1 pts Assume that we want to construct a confidence interval. Determine whether you should use the t-distribution or the normal distribution to find it, based on the following information. In this problem, let n be the sample size n = 200, the population standard deviation is unknown, the population appears to be normally distributed O neither of the methods studied by us can be used O T-Distribution O Normal Distribution