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A manufacturer of salad dressings uses machines to dispense liquid ingredients into bottles that move along a filling line.The machine that dispenses dressing is working properly when 8 ounces are dispensed.The standard deviation of the process is 0.15 ounces.A sample of 48 bottles is selected periodically,and the filling line is stopped if there is evidence that the mean amount dispensed is different from 8 ounces.Suppose that the mean amount dispensed in a particular sample of 48 bottles is 7.983 ounces.Calculate a confidence interval to test the hypotheses at α = .05.
Leadership Research
The systematic study of leadership styles, practices, and outcomes to understand and improve leadership effectiveness.
Quantitative Method
A research method that focuses on obtaining and analyzing numerical data for statistical analysis.
Questionnaires
A set of written questions used to collect information from respondents, often for the purposes of research, survey, or assessment.
Causality
The relationship between cause and effect, where one event (the cause) directly leads to the outcome (the effect).
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