If a Main-Sequence Star Were Gaining Mass by Being in an Interacting

question 71

Multiple Choice

If a main-sequence star were gaining mass by being in an interacting binary system, what would happen to that star's luminosity and why?

• A) The luminosity would increase because the star would become a nova.
• B) The luminosity would increase because the star's central pressure would rise and the rate of nuclear reactions would increase.
• C) The luminosity would decrease because the outgoing energy has to pass through more layers in the star.
• D) The luminosity would decrease because high-mass stars are fainter.
• E) The luminosity would decrease because the star would quickly turn into a white dwarf.

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Definitions:

Rejection Region

The spectrum of results causing the null hypothesis to be dismissed in hypothesis testing.

Confidence Level

The probability, expressed as a percentage, that the range of a confidence interval contains the true parameter value.

Critical Value

A critical value is a threshold in hypothesis testing that defines the boundary or cutoff points for deciding whether to reject the null hypothesis.

Population Mean

The average value of a property in a population, calculated by summing the values of all members of the population and dividing by the total number of members.