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A random sample of 100 students is taken from a larger population of students in a multi-lecture
course and the sample mean (average) of their final grades is found to be 57.5. Suppose it is
known that the population standard deviation is 8. Use R to help you test, with a significance
level of 0.04, whether there is significant evidence that the average grade for the population
exceeds 56. Choose the most correct statement.

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A random sample of 100 students is taken from a larger population of.pdf

  • 1. A random sample of 100 students is taken from a larger population of students in a multi-lecture course and the sample mean (average) of their final grades is found to be 57.5. Suppose it is known that the population standard deviation is 8. Use R to help you test, with a significance level of 0.04, whether there is significant evidence that the average grade for the population exceeds 56. Choose the most correct statement.