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Thirty randomly selected students took the calculus final.If the sample mean was 91 and the standard deviation was 11.7,construct a 99% confidence interval for the mean score of all students.
Sample Size
The number of participants or observations included in a sample, used in statistical analysis to make inferences about a larger population.
T-Distribution
A probability distribution that is used to estimate population parameters when the sample size is small and the population standard deviation is unknown.
Standard Normal Distribution
A normal distribution with a mean of 0 and a standard deviation of 1, used as a basis for comparing other normal distributions.
Finite Population Correction Factor
A statistical adjustment made to the standard error of a sample mean or proportion when sampling without replacement from a finite population.
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