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Candles and Coconut Oil: What Type of Test?

APSTAT-HNJLGY

A chemical engineer has been working on developing a new type of candle wax made from coconut oil. The engineer wonders how the amount of time that a candle made of coconut oil wax will burn compared to the time that a candle made of beeswax will burn.

After gathering the appropriate data and ensuring that the necessary conditions have been satisfied, which type of significance test should the engineer conduct?

A

A one-sample $t$-test for a population mean.

B

A two-sample $t$-test for the difference in population means.

C

A matched pairs $t$-test for the difference in a population mean.

D

A $z$-test for a population proportion.

E

A ${ \chi }^{ 2 }$ test for goodness of fit.