Question

Using the K-S Test, determine if it is reasonable to assume that the data given in...

Using the K-S Test, determine if it is reasonable to assume that the data given in column A came from a uniform distributionbetween 0 and 100. Show your results below using a Type I error of 5%: (Note, for the p-value estimate, if it is greater than 10%, write “>10%”; if it is less than 1%, write “<1%”; otherwise, use linear interpolation. Value for the Dn = max {D+ , D- } statistic: Value for the KS test statistic: Critical value for the KS statistic:    Estimate of p-value: Delete the line that does not apply: Conclusion: Fail to reject H0, the data may have come from an uniform distribution Conclusion: Reject H0, the data may not have come from an uniform distribution

Data
88.3
91.7
98.8
32.4
20.6
76.6
40.7
67.3
90.1
87.8
73.1
73.2
36.3
7
17.2
69.8
21.6
27.3
27.3
45.2
23.7
62.6
6
87.6
36.8
23.3
97.4
99.7
45.3
87.2

Homework Answers

Answer #1

R code:

Data=c(88.3,91.7,98.8,32.4,20.6,76.6,40.7,67.3,90.1,87.8,73.1,73.2,36.3,7.0,17.2,
69.8,21.6,27.3,27.3,45.2,23.7,62.6,6.0,87.6,36.8,23.3,97.4,99.7,45.3,87.2)
ks.test(Data,"punif",0,100)

Output:

One-sample Kolmogorov-Smirnov test

data: Data
D = 0.172, p-value = 0.3373
alternative hypothesis: two-sided

Warning message:
In ks.test(Data, "punif", 0, 100) :
ties should not be present for the Kolmogorov-Smirnov test

Value for the KS test statistic=0.172

Critical value=0.242

Estimate of p-value=0.3373

Conclusion: Fail to reject H0, the data may have come from an uniform distribution (since P-value>0.05)

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