Someone please help me, with a desperate needed of help for this. Please help me. I'm really having trouble solving this one.

Problem

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

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

More Information

Choosing the variable of interest to be thediagonal length:

Mean of pop: 247.7583

Stdev of pop: 0.701734

Mean of sample: 247.975

Stdev of sample: 0.811964

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