A major dish network chain is considering opening a new office in an area that currently does

not have any office to serve residents of that area. The chain will open store only if more than

7,200 of the 24,000 households in the area shows interest to get dish network installation. A

telephone poll of 625 randomly selected households in the area shows that 425 households are

not interested in the dish network installations. Using ?=0.05, the chain should

a. use H₀: ?