How hot is the air in the top of a hot air balloon? information from Ballooning: The complete guide to riding the winds; by writh and young claims that the air in the crown should be an average of 100...

How hot is the air in the top of a hot air balloon? information from Ballooning: The complete guide to riding the winds; by writh and young claims that the air in the crown should be an average of 100 degrees celcius for a ballon to be in a state of equilibrium. However the temperatuer does not need to be exactly 100 degrees celcius. What is the reasonable and safe range to temperatuers? This range may vary with the size and shape of the balloon. All balloons have a temperature gauge in the crown. Suppose that 56 readings for a balloon equilibrium gave a mean temperature of 97 degress celcius. For this balloon and standard deviation of 21 degrees celcius.

Compute a 95% condidence interval for the average temperture at wich this balloon will be in a steady state equilibrium ( Round answer to one decimal place)

Lower Limit                  degrees celcius

Upper Limit                    degrees celcius