Question

My class made paper airplanes, the goal was to have 4 throw reach 96 inches or more. With the recorded data, we were to come up with some calculations.

Here is the data recorded from the throws (I didn't know if it was appropriate to use sample standard deviation or population, so this calculation currently includes sample).

Exercise WMB Airlines What is the 95% confidence interval of Sample average distance-from-target -Sample % of throws within 96 inches - Is this a z or t calculation? Exercise WMB Airlines Calculate sample size required to determine, at a 95% confidence level: 1) 10% improvement of throws within 96 inches from the target 2) Can you calculate the sample size for the average distance-from-target measure? If no, why? Throw # Distance (inches) 174.5 197 Averag Standard Deviation 150.38 47.32 2 4 142 4 Trials 3 Successes (>96 in.) 1 Failure (

Answer 1

4 e) ( lso . 38士(318).yJ (2.3 . 66) 2) リ 4t- luul 군0.05ニ1:96 α~o.us-