Show Attempt History Current Attempt in Progress X Incorrect. Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. An article in Human Factors (June 1989) presented data on visual accommodation (a function of eye movement) when recognizing a speckle pattern on a high-resolution CRT screen. The data are as follows: 36.45, 67.90, 38.77, 42.18, 26.72, 50.77, 39.2, and 50.27. Calculate the sample mean and sample standard deviation. Round your answers to 2 decimal places. Sample mean = i 44.08 Sample standard deviation = 12.39 Statistical Tables and Charts