According to a National Survey,the Average Commuting Time for People

question 34

Multiple Choice

According to a national survey,the average commuting time for people who commute to a city with a population of 1 to 3 million is 19.0 minutes.Suppose a researcher lives in a city with a population of 2.4 million and wants to test this claim in her city.Taking a random sample of 20 commuters she calculates a mean time of 19.346 minutes and a standard deviation of 2.842 minutes.Calculate the appropriate test statistic to test the hypotheses.

• A)1.08
• B)0.54
• C)-1.08
• D)-0.54
• E)3.60

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Definitions:

Nuclear Fusion

Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles, releasing significant amounts of energy.

Depleted Uranium

Uranium with a lower content of the fissile isotope U-235 than natural uranium, used in military projectiles and for shielding.

Nuclear Transmutation

The process by which the nucleus of one chemical element is changed into a nucleus of a different element, often by bombarding it with particles.

Pressurized Water Reactor

A type of nuclear reactor where water is used as both coolant and moderator, kept under high pressure to prevent it from boiling.