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1) A researcher is comparing 4 groups to test if they have the same means. There are 72 data values altogether. The degrees of freedom for the Between(dfB) and the degrees of freedom for the With-in (dfW) are?2) If there are 3 means to be compared, then how many possible different comparisons are there altogether?
Compare population means or proportions to determine the relationship between variables.
How can you answer the dual simplex question with maximization objective function and also explain difference between m tecnique and two phase method?
Convert the given fraction into its other two forms? Evaluate expression. Use a calculator to check.
Suppose the probability that a federal income tax return conatins an arithemetic error is 0.2. If 10 federal income tax returns are selected at random,
Provide an example of an independent sample and or a related sample that might be appropriate for use in your organization.
Test, at the significance level of 0.05, whether the mean bacteria count for the plant discharge exceeds that for the upstream location.
What is the probability that of today's 1,100 callers at least 5 received a busy signal? Use the poisson approximation to the binomial.
If you were using the relative frequency of an event to estimate the probablility of the event, would it be better to use 100 trials or 400 trials according to the law of large numbers?
The progress report of a research analyst to the supervisor stated: "All the estimated regression coefficients in our model with three predictor variables to predict sales are statistically significant.
Calculate the probability that a randomly chosen sample of 17 games would have a sample mean less than the one you calculated in this exam. Use the standard normal distribution.
What is our decision regarding the differences between the observed and expected frequencies if the critical value of chi-square is 9.488 and the computed value is 6.079?
The sum of two numbers is less then 27. The second number is 7 less then the first. What are the possible values for the first and second number
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