Suppose a pizza place claims its average pizza delivery time is 30 minutes, but you believe it takes longer than that. What are your null and alternative hypotheses?
a) Null: The average delivery time is 30 minutes. Alternative: The average delivery time is not 30 minutes.
b) Null: The average delivery time is not 30 minutes. Alternative: The average delivery time is 30 minutes.
c) Null: The average delivery time is less than or equal to 30 minutes. Alternative: The average delivery time is greater than 30 minutes.
d) Null: The average delivery time is greater than or equal to 30 minutes. Alternative: The average delivery time is less than 30 minutes.
