Question 2: A park ranger is estimating the length of stays at a state park. He performs a simple random sample of 55 people and finds that the average stay is 2.25 hours with a standard deviation of 1.2 hours. Construct a 90%-confidence interval for the time spent at this state park. Don't forget to check conditions and interpret your confidence interval.

Q: y 35 1 N 34

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Q: 14. The vectors a and b are such that |a| = 3, |b| = 5 and a. b = -14, then |a – b| = %3D A 62 B V62

A: Solution: Given vectors a and b such that a=3,  b=5 and a·b=-14

Q: the true answer is $

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A: Coefficient of determination: It is the predicted percentage, used to predict the dependent variable…

Q: O-6 O 5

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Q: Consider x1 = 10, x2 =9, x3 =5, x4=17 A. Find n B. Compose Ex1 C. Determine x.

A: Solution: Given sample data is  x1= 10, x2= 9, x3= 5  and x4= 17

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A: We have to evaluate limx→-3+f(x) g(x)3.

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A: Given: ÷4=6

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A: Temperature (oC) Corrosion (mm/yr.) 26.6 1.58 26 1.45 27.4 1.13 21.7 0.96 14.9 0.99 11.3…

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A: We have given a diagram;

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A: Please see the below picture for detailed solution.

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A: Verify the identity

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A: Does the question want me to write out every single combination?

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Q: (x+si

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A: Given : lne4x = 16

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A: p=-7, -6q=-1, -11 andr=0, 9

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A: We have find Equation of Envelope.