check the proe betxe puiting the Aecm in ther cart. Of an independent randem sarpile of 240 choosing a product at a special perce. 215 made tha clam. Find a 998 confisence inderva for the difference between the two popuiation proportions Let Py be the population propotion of shoppers choosing a product at the roguas price who claim to check the price before puling at into their cart and let Py be the population propornon of theppers chooung a produd at a special peice who olairn to check the price before putting it into their cart. The g9ti coridence intervat is.