K A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2752 occupants not wearing seat belts, 28 were killed. Among 7604 occupants wearing seat belts, 19 were killed. Use a 0.01 significance level to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample of occupants wearing seat belts. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P1 P2 H₁ P₁ P2 D. Ho P1-P2 Н1 01

Q: 2(r+s) 98(t-5)2 7(5-1) 14(r+s)

A:

Q: Find QP.

A:

Q: Find, if possible, (a) AB and (b) BA.

A:

Q: 2. Simplify the following and state restrictions a. x²+2x-80 2x³ - 24x² +64x b. 16a²b³c4 20a7b²c²

A:

Q: Which expression has the smallest value? F19| A |-34| D 47| D.

A:

Q: 16. y = 2x√x² - 2x + 2

A: y=2xx2-2x+2

Q: 30 Find the value of x. [A] 23 [C] 80 63 40

A:

Q: 17. Use the previous exercise to determine whether or not 6x* – 23x + 32x – 19x+4 has a multiple…

A:

Q: i do not undertstand where the 8 has come from in q2c

A: Part c,            4log32-log34-2log33-log312

Q: what is 2(p+4)=2

A: Step 1:  2(p+4)=2 Step 2: 2p+8=2 Step 3: 2p=2-8 Step 4: 2p=-6 Step 5:  p=-6/2 Step 6: p= -3

Q: What is the reminder when 433 1? -5x+4 is divided by (2x – 1)? b-1 eThere is no reminder

A: We will use polynomial long division to solve it

Q: 6a b4 (e) 18a b?

A: To simplify the algebraic expression few points we should keep in mind: i) If two numbers are in…