Assume that 40% of students at SCC receive A or B’s, 35% receive C’s, and 25% receive
D or F’s. A survey of 300 r/s UC Davis students indicates that 100 of them received A or
B’s, 130 received C’s, and 70 received D or F’s. Do these results provide strong evidence
that the overall percentages of the 3 grade categories at UC Davis are not all the same as
the ones at SCC? Perform a hypothesis test and use a p-value to draw and explain your
conclusion