Statistic coursework Essay Example | Topics and Well Written Essays - 2500 words

Statistic coursework - Essay Examplee) AssumptionsThe population is normally distributedThe sample is randomly and independently selected. skepticism 4 Distribution of leading digits using Ben fords Law of distribution.Value of XProbability10.30120.17630.12540.09750.07960.06770.05880.05190.046Observed Values shape FrequencyProportions1310.3442140.155390.1440.044570.077630.033760.066890.1970.077 physical bodyObserved FrequencyExpected Frequency based on Benfords Law(Observed- expected) / expected.13127.090.56434521415.840.2137373911.250.45448.732.562761577.110.001702636.031.522537765.220.116552894.594.237059974.411.52111111.189a) Null supposalHo p1= 0.301 and p2 = 0.176 and p3 = 0.125 and p4 = 0.097 and p5 = 0.079 and p6 = 0.067 and p7 = 0.058 and p8 = 0.051 and p9 = 0.046.Alternate HypothesisHa At least one is differentb) Test Static = (O-E) /E= 11.189c) P- Valuedf = n-1 = 9-1 = 8 0.15