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Physical Sciences
The well depth in certain locations is important for agriculture and for the development and maintenance of residential and commercial areas. A random sample of the depth to water (in centimeters) at the Upper Gordon Gulch Ground Water Well from 2011 to 2013 is given in the following table.
a. Find a 98% confidence interval for the population variance in depth to water at this site.
b. Find a 98% confidence interval for the population standard deviation in depth to water at this site.
c. Use the methods described in Section 6.3, page 272, to test for any evidence of non-normality.
Why use the Wilcoxon T test. What is the hypothesis statements you used? Consider do we prefer working with dependent samples or independent samples? Explain
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With reference to Exercise 9, use Table II of "Statistical Tables" to find values corresponding to k0.025 and k'0.025to test the null hypothesis λ = 3.6 against the alternative hypothesis λ 3.6 on the basis of five observations. Use the 0.05 level o..
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