Select the correct answer A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?
9/2+ 3(4 – 1) – 7 + 23
Step 1: = { + 3(3) — 7 + 23
Step 2: =
- 9 + 3(3) – 7 +8
Step 3: = = 15 (3) — 7 +8
Step 4: = 4 - 7 + 8
Step 5: = 1 +8
Step 6: = 12
OA. Step 5
OB.
Step 3
Step 4
D.
Step 1

The vice president of programming at nbc is finalizing the prime-time schedule for the fall. she has decided to include a hospital drama but is unsure which of two possibilities to select. she has a pilot called the surgeon and another called critical care. to her make a final decision, a sample of 20 viewers from throughout the united states was asked to watch the two pilots and indicate which show they prefer. the results were that 12 liked the surgeon, 7 liked critical care, and one had no preference. state the decision rule, using the 0.10 significance level. h0: π = 0.50 h1: π ≠ 0.50 1. reject h0 if number of + signs is either < = or > = 2. what is your decision regarding h0? is there a preference for one of the two shows?