Refer to Data Set 10 in Appendix B and use the durations (hours) of the NASA shuttle

Question:

Refer to Data Set 10 in Appendix B and use the durations (hours) of the NASA shuttle flights.

a. Find the mean and standard deviation, and verify that the data have a distribution that is roughly normal.

b. Treat the statistics from part (a) as if they are population parameters and assume a normal distribution to find the values of the quartiles Q₁, Q₂, and Q₃.

Distribution
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