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Instruction 8-4
To become an actuary,it is necessary to pass a series of 10 exams,including the most important one,an exam in probability and statistics.An insurance company wants to estimate the mean score on this exam for actuarial students who have enrolled in a special study program.They take a sample of 8 actuarial students in this program and determine that their scores are: 2,5,8,8,7,6,5,and 7.This sample will be used to calculate a 90% confidence interval for the mean score for actuarial students in the special study program.
-Referring to Instruction 8-4,for the confidence interval to be valid,it is necessary that test scores of students in the special study program on the actuarial exam be normally distributed.
Age Groups
Categories of individuals segmented according to their ages, often used in research and demographic studies.
Moviegoers
Individuals who go to cinemas to watch films, often studied in market research to understand viewing habits and preferences.
Age Groups
Categories of populations divided according to age for purposes of demographic analysis or study.
Kruskal-Wallis Test
A nonparametric statistical test used to determine if there are statistically significant differences between two or more groups of an independent variable.
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