Select the correct answer

The researcher inspects the amount of time it takes to produce tshirts in a garment factory. A sample of 49 tshirts is drawn and where the sample mean is 1?.1 minutes and the sample standard deviation is 2.1 minutes. From this informationr which ofthe following is a 99% confidence interval for the mean number of tshirts produced? O a. 24.56 and 16.33 D l3. 16.319 and 1?.99 O c. 113? and 16.33 Q d. 13.35 and 18.99