please quickly i just have 40 minutes , Please simplify the process I will give you a thumb

Question 9: A guide for a particular role playing game lists the following percentages for the rarity of items obtained when a "loot box" is opened. Item rarity Percentage chance super rare 5% rare 10% uncommon 25% common 60% Emmanuel thinks that the guide is incorrect. To test his suspicions, he opens 250 loot boxes. His results are shown in the table below. Item rarity Frequency super rare 5 rare 17 uncommon 76 common 152 Total 250 a. Calculate the expected frequency for each item rarity. b. Conduct a x2 goodness of fit test with 1% level of significance to determine whether Emmanuel's suspicions are justified. Use a critical value to make your decision. Xcrit = 11.34; Xcalc = 10.00; p - value = 0.0185