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Explain how the Central Limit Theorem can help you convince your boss that while you can't get rid of sampling error the results from your statistical work (that is based on sampling) can still be useful. HINT: This is more of a story response (i.e. discussion of theory) than a math response (i.e. numbers and calculations flying all over).
At the 5% level of significance, does this result support the conjecture?
State in each of given cases whether you would expect relationship between given variables to be positive or negative or neither.
The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.
The student body of a large university comprises 60% female students. Elucidate what is the probability that the students in the sample exactly two are female?
Area to right of mean of normal probability distribution is?
The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the possibility that- ..
Explain the overall statistical significance of the model, Explain the statistical significance for each independent variable in the model
Describe a psychological research situation or scenario that would use a nonparametric test. Why would the nonparametric test be used?
Find the equation of least -squares line and plot the line on the scatter diagram of part (a)
The linear correlation coefficient, r, measures the strength of the linear relationship the variables in a set of ordered pairs (x,y). What is the maximum and minimum values for r?
Thompson Machine Works purchased several new, highly sophisticated machines. The production department needed some guidance with respect to qualifications needed by an operator. Four variables were listed.
When an experiment is conducted, one variable is manipulated to see the impact on another variable -- that's why experiments address causation.
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