We select a random sample of ten oranges from trees grown in a large orchard. The standard deviation of weights of these ten oranges is calculated to...

We select a random sample of ten oranges from trees grown in a large orchard. The standard deviation of weights of these ten oranges is calculated to be 19 grams. Based on this sample, a confidence interval for the true mean weight of all oranges grown in the orchard is calculated to be (126.41, 153.59). What is the confidence level of this interval?