Questions 7-11: Use the following scenario to answer the questions that follow. The U.S. Centers for Disease Control conducts the National Youth Tobacco Survey each year. The preliminary results of 2019 show that e-cigarette use is up among US teens while cigarette use is down. In a sample of 1600 teens, 120 reported smoking a cigarette in the last 30 days. Estimate at 95% confidence the proportion of all US teens who smoke cigarettes. 7. Find the value of z or t, whichever is appropriate. Sketch the appropriate bell curve. 2 ± 1.96 -025 95% -1-96 1.96 8. Calculate the standard error. Write the formula with the correct values inserted. SE= -√P(1-P) 075 0.05 -0.075 1600 9. Calculate the margin of error. Write the formula with the correct values inserted. 10. Calculate the interval. Write the formula with the correct values inserted. 11. Interpret the interval in the context of the problem.

Q: Question 12

A: Given: Value of the trading card = $155 (in 2009) Each year increases by = 4.8% = 0.048 To…

Q: part c parked as wrong answer

A: Mean()=12Standard deviation()=4

Q: Do dominant and subordinate individuals differ in the means of giggle spectral CV?

A: For Group : Dominant Individual Standard Deviation, s: 0.05410 Count, N: 9 Sum, Σx: 2.755…

Q: the true answer is $

A:

Q: Which graph correctly solves the equation below? -x²+1=x²-4

A: topic - quadratic equations

Q: Need help! 2 questions

A: Pick the odd one out.

Q: Question 4 too please.

A:

Q: Is this for question 2 or 3?

A: The standard deviation is 0.2.

Q: Can someone answer this question CORRECTlY

A:

Q: can you answer part A of the question please

A: Given, The following equation x2+2x+28=0 can be solved using the complete square method or the…

Q: Question 20

A: Given Data :  General form of the sequence an=2(an-1)+1, a1=4 To Find : The first four terms of the…

Q: This answer is wrong

A:

Q: do question 7

A:

Q: Parts A and B please

A: a) It is given that, a box has square base of side x and height h. The volume is 15 and surface area…

Q: Can someone complete question 2

A: The given function is:f(x,y)=(x+5)eyGiven point is:P=(3, 0)

Q: 27. 3xv2 v' = 3x4 + v3

A: Given    3xy2y' = 3x4+y3  .......(1)(1) Can be written asy'-y3x=x3y-2y'+P(x)y = q(x)yn (Bernoulli…

Q: Question 54

A:

Q: question number 2

A: Given that, The random variable x is the amount of liquid dispensed varies. X~N(μ,σ=0.2) The cups…

Q: Can you answer question 8 too

A: Given data : Four groups ,K = 4 N = 32Education : { 62,81,75,58,67,48,26,36 } Business management :…

Q: b and c are all wrong. please do them correct.

A: The regression equation is: .

Q: Question 11

A: