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Hypotheses for Means: Waiting Time

APSTAT-S4XRCN

A valet company claims that a customer's average wait time for their car is $8$ minutes. After waiting $20$ minutes to get your car, you believe the valet company's time to get a car is greater than $8$ minutes.

Which of the following hypotheses would be used to test your belief?

A

${ H }_{ 0 }:\overline { x } =8$
${ H }_{ a }:\overline { x } \neq 8$

B

${ H }_{ 0 }:\overline { x } =8$
${ H }_{ a }:\overline { x } < 8$

C

${ H }_{ 0 }:\overline { x } =8$
${ H }_{ a }:\overline { x } < 8$

D

${ H }_{ 0 }:\mu =8$
${ H }_{ a }:\mu <8$

E

${ H }_{ 0 }:\mu =8$
${ H }_{ a }:\mu >8$