Q1 (4 mark). "Could data analysis have saved the Challenger?"

January 1986: the Challenger shuttle exploded 1 minute into flight, killing all 7 astronauts aboard. On the night before the launch, engineers warned NASA that it was suspected that rocket booster O-rings failed at low temperatures.

The forecast for launch day was an unusually cool 30 F (-1 oC). The full NASA data set (in chronological order) is shown below in table 1 and table 2.

Table 1. Launches with O-ring failures.

Table 2. Launches without O-ring failure.

If you’d had this data available, would you have recommended to abort the mission? Use two most suitable hypothesis tests that you have leant in this unit to answer this question.  The methods can be from either Module 1 or Module 2.

Q2 (4 mark). "air temperature vs wind speed"

Do you think there is a linear relationship between air temperature and wind  speed around Perth region? You will need search for Perth weather data from internet to answer this question using methods that you have learned in this   module.