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According to history, who was the first elected female head of government?
suppose that the correlation r between two quantitative variables was found to be r 0. this means thatthere is a
question a researcher is interested in differences in the use of sick days by younger and older adults working for a
The same students increased their scores on a retest to: 85,79,75,95, and 84. At the 0.05 significance level, is the intervention plan helpful in increasing grades?
a final exam in math 160 has a mean of 73 with a standard deviation of 7.8. 40 students are randomly selected and
How do we use a least squares regression line? Please explain in your own words. What is the range for the coefficient of determination? Please explain in your own words.
List 4 variables that you might assess in a research project related to your research area. List one for each type of measurement scale: Nominal, ordinal, interval, and ratio
Your company is considering submitting a bid on a major project. You determine that the expected completion time is 100 weeks and the standard deviation is 10 weeks.
Determine Hernandez's optimal shipping quantities so as to minimize total transportation costs.
Discuss how the Empirical Rule works and how it relates to the bell curve. Then, explain Chebyshev's Theorem and how it is different from the Empirical Rule.
Skywest Airlines is a regional carrier providing jet service to smaller airports for American Airlines, United, and Delta. This project will consider one route that Skywest operates for United Airlines:
The time in months between occurrences of safety violations in a toll manufacturing facility is shown in the table below for three operators, "A," "B," "C".
She wants to be 95% confident that her estimate is correct. If the standard deviation is $1050, how large a sample is needed to be accurate within $200?
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