When Gavin left his house in the morning, his cell phone battery was partially charged. The charge remaining in Gavin's battery, as a percentage, can be modeled by the equation B=28-7t, B=28−7t, where tt is the number of hours since Gavin left his house. What is the yy-intercept of the equation and what is its interpretation in the context of the problem?

Apolice office claims that the proportion of people wearing seat belts is less than 65%. to test this claim, a random sample of 200 drivers is taken and its determined that 126 people are wearing seat belts. the following is the setup for this hypothesis test: h0: p=0.65 ha: p< 0.65 find the p-value for this hypothesis test for a proportion and round your answer to 3 decimal places.