Help The line graph below represents the number of guests at Winnie’s family’s New Years

Eve party each year.

The range of guests was 22, the median number of guests was 18.5, and the average number of

guests was 55/3 complete the table below with the total number of guests from each year.

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.