What would be the upper bound of the 95% confidence prediction interval for the following returns:

HINT: First calculate the standard deviation

Date	Return
11/01/2018	-0.12%
11/14/2018	0.31%
12/01/2018	4.30%
12/14/2018	6.83%

NOTE: Enter the PERCENTAGE number rounding to two decimals. If your decimal answer is 0.034576, your answer must be 3.46. DO NOT USE the % sign