1 Analysis of sample complete solutions correct answers key

1 Analysis of sample complete solutions correct answers key

1: for this data carry out a test of the hypothesis H0 : = 0 vs Ha : > 0, using an appropriate non-parametric test based on the median, mean or a 10% trimmed mean. Compare your results to the one-sample t-test.
2 For sample 2 test the following hypothesis:
a H0 : = 2 vs Ha : 1 b H0 : 1 = 2 vs Ha : 1 ̸= 2
c H0 : F1(x) = F2(x) vs Ha : F1(x) F2(x).

As in part (a) for the test comparing means, compare your results to the two-sample t-test. For the comparison of variances, compare your results to the F-test for equality of variances.

3 For the data in sample 3 compare the distributions using the Kolmogorov- Smirnov test.

4 For the data from sample 4 test the hypothesis H0 : 1 = 2 = 3 vs the alterative that not all means are equal. Compare your results to the F-test from ANOVA.

In all cases, assess the distribution your data is sampled from using plots and other diagnostic tools. Discuss which approach you prefer and why. Also, discuss various non-parametric tests and which one you feel is the most appropriate for each of the samples. Summarize your results in the form of written report in the style of a scientic article. You will be graded on both the statistical methods used and the write-up.