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A random sample of 85 supervisors revealed that they worked an average of 6.5 years before being promoted. The population standard deviation was 1.7 years. Using the 0.95 degree of confidence,what is the confidence interval for the population mean?
Weight Loss Strategy
A plan of action designed to help individuals reduce their body weight, often involving diet, exercise, and lifestyle changes.
Null Hypotheses
A default hypothesis that there is no significant difference or effect, typically set as the assumption to be tested in statistical hypothesis testing.
Alternative Hypotheses
The hypothesis that suggests there is a statistically significant effect or relationship between variables, opposite to the null hypothesis.
P-Value
A statistical measure that indicates the probability of observing the results of a study, or more extreme results, if the null hypothesis is true.
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