7. Statistical analysis of series of observations

The seller is blocked and sales of the product are suspended

The task of metrology.

Perform a statistical analysis of observations of the measured value by the volume of this series. Identify and eliminate mistakes in the results of observations put forward (if possible) the hypothesis of the distribution law with a given confidence level. Determine the value of the measurement result, assuming no bias. Determine the standard error of a random measurement result. Construct a histogram of the results of observations. Make a conclusion about the legality of the hypothesis put forward earlier. Confidence level of 0.9342. A set of observations: 287, 308, 290, 306, 296, 301, 291, 295, 290, 292, 290, 310, 304, 312, 324, 323, 318, 293, 293, 275, 275, 280, 269, 319, 297, 354.