4. 10 adults were randomly sampled and asked how many years of education they have. The sample mean was 15 with a standard deviation of 3. Find a 95% confidence interval for the true population mean years of education. Please write your confidence interval as an equation and in a sentence.

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A: Additional Law of Probability gives P( A ∪ B ) =P(A) + P(B) - P(A∩B)

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A: We have to plot graph of Gven Functions,1x2-1, xx2-1, x2x2-1, and x3x2-1.,From x = -2 to x=2.

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A: Given: Solution: the null and alternative hypothesis are; option c is correct. HO :p1= 47%, p2= 31%,…

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A:

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A: Given that σ2 = 74 ∑(xi-x¯)2=161

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A: (a) Since we are assuming the patient's breath is steady, we can model the patient's breathing using…

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A: This question seeks to estimate the estimated crime rate for someone who has experienced a 25%…

Q: The us population can be modeled by the function y=165.6x^1.345 where y is in thousands and x is the…

A: The US population is modeled by the function, y=165.6x1.345 where y is in thousands and x is the…

Q: Dieticians claim that most adults do not intake enough dietary fiber from food (not supplements).…

A: Given data: Sample mean = x = 19.25 Standard deviation = S = 4.8761 Sample size = n = 20 Population…

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A:

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A: Since(a+b)2 = (a+b)(a+b)

Q: Part 1) Use the given graph of the function f to find the following values for f^−1. 1. f^−1 (−4)=…

A:

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Q: What are finite differences, and how are they used to estimating derivatives of gridded data

A: It is given that Finite differences

Q: Match the following items by evaluating the expression for x=-2. x^(-2) x^(-1) x^(0) x^(1) x^(2

A:

Q: During the test, the smallest 'volume per breath' is 0.6 liters, and this first happens for a breath…

A: (a) Since the patient breath is steady the volume per breath can be modeled by the sine function.…

Q: a rectangle can be drawn in the first quadrant bounded by the curve y= 8- x^3 , the x- axis and the…

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A: Given X is binomial distribution with parameters n,p.The moment generating funciton of binomial…

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Q: Find critical value -5x^3+15x+3

A: This question can be solved using the concept of critical points of a function.

Q: During the test, the smallest 'volume per breath' is 0.7 liters, and this first happens for a breath…

A: a)  Volume per breath increase and decrease over time can be modelled by sinusoidal function.…

Q: Define Method of Variation of Parameters ?

A: To explain about method of variation of parameters.