STTOSI Inferential Statistics and Biometry Assignment: Hypothesis Testing May 31, 2022 GENERAL INSTRUCTION. Answer the following problems and show your complete solution including the formula used in the problem. MAGIC is strictly prohibited! A camera has been developed to detect the presence of cataract more accurately. Using this camera, the gray level of each point (or pixel) in the lens of a human eye can be characterized into 256 gradations, where a gray level of 1 represents black and a gray level of 256 represents white. To test the camera, photographs were taken of 6 randomly selected normal eyes and 6 randomly selected cataractous eyes. Patient No. 1 2 3 4 5 6 Cataractous median gray level 161 140 13 S 171 106 149 Normal median gray level 158 181 185 145 167 177 Assuming the population to be normally distributed with unequal variances, test at the 0.05 level of signicance whether there is a signicant difference in the median gray level between cataractous and normal eyes