Please show all work, calculations, formulas

Previous studies have found that 75% of adults use the internet on a regular basis. A researcher believes this percentage has recently increased. He conducts a survey and discovers that 2144 out of 2824 adults surveyed use the internet on a regular basis. a)Let Y denote the number of adults that use the internet on a regular basis in this sample. Describe the exact distribution of X; name it and identify the parameters b)Assuming 75 actually is the correct percentage, whats the approximate probability of seeing at least this many users out of 2824 users? c)Does this happening seem to provide evidence thatthe percentage of adult internet users has increased? Justify your