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The statistical research was done primarily through the internet from governmental regulated sources. Estimates were used in consideration of absence of actual information.
a. Identify two to three sources of ethical issues in your statistical research and data collection.
b. Evaluate potential biases in your research methodology.
c. How could inaccurate, dishonest, and incomplete interpretation of your research results contribute to poor business decision making?
Use a .05 significance level to test claims that quarters manufactured with the new equipment have weights with a standard deviation less than .061
Evaluate the data below using the Kruskal - Wallis Nonparametric Hypothesis Test. Explain why you chose this particular nonparametric test to analyze your data.
Correlation based on Scatter Plot - Draw the scatter plot for the variables.
You are given an annual time series with 40 consecutive values and asked to fit a fifth-order auto-regressive model.
During the 2003 season, MLB took steps to speed up the play of baseball games in order to maintain fan interest; the following results come from a sample of 60 games played during the summer of 2002. And a sample of 50 games played during the summ..
Use alpha level. 05 to compute and interpret Pearson's r and to test whether it is important (using all your steps for hypothesis test).
All else being equal, what occurs to your confidence interval when you increase value of alpha?
Create a set of n observations from the binomial distribution with 1 trial and the event probability of 0.007, where n is your answer.
What is the probability of this actually happening?
For each of following data sets, select the most suitable response from choices below the table. A strong negative linear relation exists.
Is this correlation statistically significant? He also found the regression coefficient to be -1.66. Is this regression coefficient statistically significant? Explain why or why not for each.
Assuming an exponential service rate μ, set this up as a birth and death process and determine the birth and death rates.
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