Trait # 4 Mathematical Reasoning Provide an appropriate response. 16) For the do

Question

Trait # 4 Mathematical Reasoning Provide an appropriate response. 16) For the dot plot below, what is the maximum and what is the minimum 16) entry? 12 13 14 15 617 A) max: 17; min: 12 C) max: 14; min: 12 B) max: 54; min: 15 D) max: 54; min: 12 Provide an appropriate response. 17) In a game, you have a 1/50 your expected value probabvilitv of winning $69 and a 49/50 probability of losing $3. What is 17) S4.32 D) $1.38 C)-$1.56 18) The ta the smoking habits of a group of college students 18) Sex Man Woman Total Non-smoker | Regular Smoker L Heavy Smoker Total 206 218 424 135 187 322 10 87 If a student is chosenat smoker. Round your answer to three decimal places nat andom tind the probability of getting someone who is a regular or heavy C) 0.179 A) 0.241 D) 0.745 19) 19) Find the value of E, the margin of error, for c = 0.90, n-16 and s-2.3. B) 0.25 C) 1.01 D) 0.77 A) 0.19 20) The scores on a mathematics exam have a mean of 76 and a standard deviation of 6. Find the 20) x-value that corresponds to the z-score- A) 74.0 B) 64.2 C) 70.0 D) 87.8

Explanation / Answer

20 ) we know that the z score is given as

Z = (X-Mean)/SD

so we put the given values in the equation to solve for X as

X = Z*SD + Mean = 1.96*6+76 = 87.76 ~ 87.8 , hence D

19 )

we know that the margin of error is given as

MOE = z*s/sqrt(n) , where n = 16
s = 2.3
and z = 1.64 for 90% CI putting the values we get

1.645*2.3/sqrt(16) = 0.943 , hence answer is C

Please note that we can answer only 1 question at a time , i have answered 2

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