Contracts for two construction jobs are randomly assigned to one or more of three firms, A, B, and C. Let Y1 denote the number of contracts assigned to firm A and Y2 the number of contracts assigned to firm B. Recall that each firm can receive 0, 1, or 2 contracts. a Find the joint probability function for Y1 and Y2. b Find F(1, 0).

Lecture 10: Testing about a Population Proportion The Basic Steps in Any Hypothesis Test: Step 1: Determine the null and alternative hypotheses. Step 2: Verify necessary data conditions, and if met, summarize the data into an appropriate test statistic. Step 3: Assuming the null hypothesis is true, find the p-‐value.