Hypothesis Testing - How to identify the claim?

Question

To see whether people are keeping their car tires inflated to the correct level (35 psi), a tire company employee selects a sample of 36 tires (randomly) and checks their pressure. The mean of the sample is 33.5 psi with a standard deviation of 3 psi. Are the tires properly inflated?

Which of the following is the "claim"? Thanks.

1. H₀: p = 35 psi
2. H₁: p ≠ 35 psi

Answer 1

Why did the employee select a sample of tires and check their pressure?

To see whether people are keeping their car tires inflated to the correct level (35 psi)

In other words the employee is checking to see if p = 35 psi.

So the claim is H₀: p = 35 psi