(Answered) Can someone help me answer this question about property

Statistics

Can someone help me answer this question about property sold the total count was 293 and these were the observed values that were given to me

a) Which expected value formula do i use? I got 58.6 i'm not sure if this is correct

b) This is my hypothesis null, how do i know to reject or fail to reject it?

h0 = less than 30% of property sales are less than the category 1.

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