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The following table shows the ranks given by two judges to the performance of six finalists in a men's figure skating competition:
a. Calculate and interpret the Spearman rank correlation coefficient rs.
b. Specify the competing hypotheses in order to determine whether the correlation coefficient is significantly different from zero.
c. At the 10% significance level, specify the critical value and the decision rule.
d. What is the conclusion to the test? Are the ranks significantly related?
A. What is the standard deviation?
Examination of individual measurements shows that they are close to Normal. If the process mean is set to the target value, about what percent of films will meet the specifications?
For the following two situations, define the population parameter in words. Then specify the null and alternative hypotheses in symbols.
Let the population be given by the numbers {-2, -1, 0, 1, 2}. Take all random samples of size 3. (a) Without replacement, obtain the following in each case.
Assume the population standard deviation is 7.1 mpg. State the correct null and alternative hypotheses that the company wishes to test. Calculate the test statistic that would be used for conducting the desired test.
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if you want to be 95 confident of estimating the population mean to within a sampling error of plus or minus 6 and the
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What is the probability that all four valves will be defect-free?- What is the probability that the plant will select all three defectives?
Test an appropriate hypothesis and state your conclusion.- If your conclusion is incorrect, which type of error did you commit?
what does the multiple standard error of estimate measure? select one a. change in 1for a change in x1 b. the error or
question 1aa statistics practitioner wants to test the following hypothesesho p.70h1 pgt .70a random sample of 100
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