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

question 173

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, what is the probability that the sample mean differs from the population mean by more than 3 hours?

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Definitions:

Nucleus

The nucleus is a membrane-bound organelle within a cell that contains the genetic material (DNA).

Axon

A long fiber that extends from a neuron and transmits electrical impulses away from the neuron's cell body.

Myelin Sheath

A protective covering made of fatty substances that surrounds the axons of many nerve cells, aiding in the speedy transmission of electrical signals.

Synaptic Vesicles

Small sacs in the neuron that store neurotransmitters, which are released into the synaptic cleft to transmit nerve impulses to other neurons.