According to an article in marketing news, fewer checks are being written at grocery store checkout stands than in the past. to determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below. check written year 1 year 2 year 3 yes 225 175 125 no 275 325 375 referring to table above, the expected number of shoppers who pay by check in year 1 if there is no difference in the proportion of shoppers who pay by check among the three years is