As in Most Professional Sports,statistics Are Collected in the National

question 45

Multiple Choice

As in most professional sports,statistics are collected in the National Hockey League.In the 2006-2007 season,teams played 82 games.A team was awarded 2 points for a win and 1 point if the game was tied at the end of regulation time but then lost in overtime.For each of the 30 teams,data on the number of goals scored per game (Goals/G) and the percentage of the 164 possible points they won (Win%) during the season were collected.The following graph shows the plotted points for the variables Win% and Goals/G and the simple linear regression line fitted using least squares. From the computer output for the least-squares fit,the estimated equation was found to be , = 0.398,and = 60.29.Also,it was determined from the output that = 12.800 and = 4.418.What would the approximate 96% confidence interval be for the true slope ?

• A)19.022 ± 2.054(12.800)
• B)19.022 ± 2.154(4.418)
• C)0.932 ± 2.154(12.800)
• D)19.022 ± 2.054(4.418)
• E)0.932 ± 2.154 (12.800)

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Definitions:

Myelin Sheath

The fatty layer that surrounds and insulates the axons of some neurons, which enables faster transmission of electrical impulses.

Neurotransmitters

Chemicals that transmit signals across a synapse from one neuron to another neuron, muscle cell, or gland cell.

Synaptic Vesicle

Membrane-bound sacs in the presynaptic terminals of neurons that store neurotransmitters, which are released into the synaptic cleft in response to an action potential.

Axon

A long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body.