OK, so in 2023... things have definitely changed again.

I sent the customer service dept. an email to see if they have any updated percentages. But, several of us did an activity in our statistics classes last week, and here is what we found. All from the Cleveland plant.

https://docs.google.com/spreadsheets/d/1mozKXp9Wcl9U2X97yZEjKCO9Tfnud3FrWRrPzpF2izo/edit?usp=sharing

Raw data from each pack of M&Ms is in columns A-F, aggregate data in H-J, chi-square test against the 2017 proportions in L-O, and 99% z-intervals for each color in Q-S.