Question

So we went into lab and measured the time it took 5 beads to fall 1 meter. We figure that we were able to measure the distance to within 1 mm, and our stopwatch reads to one hundredth of a second. a. What is the uncertainty we would predict for the velocity calculation. (assume t 2 sec) b. What is the standard deviation of our data if the following values were obtained [2.1,2.0,2.3,2.1,2.4) seconds Based on the data alone, what is the 95% confidence range. C. d. Just thinking about the experiment, is this likely to be a normal distribution? (extra credit..)

Answer 1

dim ty )hdyH수eee= 0.01 &ee g ven uncertain Uncertainわin dudance = 스ç = 0,001 m So, Ünčeǐ tainty in Veloci 2 4- 2. 0.5-e(25) = 10- 2X10 The vnees bainj iv Gwen data- 2-1, 2.o 2.3, 2.1, 2.4 meam · ghindard devichon of gNon data, -0.179 mean ±2 = 2.18 ±0-13g >(2.36 to 2.001 95 % confidence下nr. -2よ

The aven data β normad distibution mean 2σ the given data 18
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