The National Highway Safety Administration recognizes that the antilock braking system as a revolutionary safety feature. The claim is that automobiles without the system are involved in more fatal crashes than those with it. State the null and the alternative hypothesis to test this claim (Ho - the frequency of accidents for the cars with the system, u is the frequency of accidents for the cars without the system). O Ho : µ < µo, H1 : µ 2 Ho O Ho : µ 2 Ho, H1 : µ < µo O Ho : H < H0, H1 : 2 Ho O Ho : µ = µo, H1 : u # 40 O None of the options are correct

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.