TABLE 7-1 Times Spent Studying by Students in the Week Before Final

question 258

Short Answer

TABLE 7-1
Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 8 hours. A random sample of 4 students was taken from a population of 50 in order to estimate the mean study time for the population of all students. Use the finite population correction.
-Referring to Table 7-1, 80% of all the samples of 4 will have a sample mean of no more than how many hours from the population mean?

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Definitions:

Ex-Confederate State

A state that was part of the Confederacy during the American Civil War, fighting to preserve slavery and secession from the Union.

U.S. Senate

One of the two chambers of the United States Congress, comprising Senators from each state, responsible for making and passing federal laws.

Hiram Revels

The first African American to serve in the United States Senate, representing Mississippi during Reconstruction.

Union League

An organization that supported the Union cause during the Civil War and worked to mobilize the Northern civilian support for the Union Army.