Please help me with this, I'm having trouble solving this one. Would really appreciate your help. All the data and information are provided below, or if more information is needed please let me know in the comment. Please help me

Analyse: Choose one valid method to evaluate how normal your population data is for both the selected data sets.

• Calculate the mean and standard deviation of the population data.
• Calculate the mean and standard deviation of an SRS of size n=8.
• Explain how you ensured that the samples were SRS.
• Determine a 90% confidence interval for the sample data when is known.
• State and test appropriate hypotheses for evaluating the squareness of the origami paper at a 1% level of significance when is unknown for an SRS of size n=8.

Data:

Paper 1 Paper 2 Paper 3 Paper 4 Diagonal 247mm Diagonal 247.5mm Diagonal 247mm Diagonal 247.5mm Side 1 - 175mm Side 1 - 175.5mm Side 1 - 175.5mm Side 1 - 175.5mm Side 2 - 175mm Side 2 - 176mm Side 2 - 175mm Side 2 - 176mm Side 3 - 175.5mm Side 3 - 175.5mm Side 3 - 175.5mm Side 3 - 175.5mm Side 4 - 175.5 mm Side 4 - 176 mm Side 4 - 175.5 mm Side 4 - 176 mm Diagonal 247.5mm Diagonal 247.3mm Diagonal 247.5.mm Diagonal 249mm Data Side 1 - 175mm Side 1 - 175 Side 1 - 175 Side 1 - 175 Side 2 - 175mm Side 2 - 175.8 Side 2 - 175.2 Side 2 - 176 Side 3 - 175mm Side 3 - 174.5 Side 3 - 175 Side 3 - 176.8 Side 4 - 175 mm Side 4 - 175 Side 4 - 175 Side 4 - 177 Diagonal 247.5mm Diagonal 248.9mm Diagonal 248.9mm Diagonal 247.5mm Side 1 - 175 Side 1 - 174 Side 1 - 175 Side 1 - 175 Side 2 - 175 Side 2 - 174 Side 2 - 175 Side 2 - 175 Side 3 - 175 Side 3 - 175 Side 3 - 176 Side 3 - 175 Side 4 - 175 Side 4 - 176 Side 4 - 176 Side 4 - 175