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4. It is claimed that an automobile is driven on the average mean of 20,000 kilometers per year. To test this claim, a random sample of 100 automobile owners are asked to keep a record of the kilometers they travel. The random sample showed an average of 21,500 kilometers and a standard deviation of 3,900 kilometers. Use one-tail test. (15%) (a) What will be null hypothesis and alternative hypothesis in the test procedure? (b) Would you agree with this claim if? Use a P-value in your decision. Hint: if you accept the null hypothesis, stop the procedure, if you reject the null hypothesis, provide a new null hypothesis.

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What is self-concept, and how does it typically develop during childhood?

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Graph the exponential function. \[ f(x)=-\frac{2}{3}(4)^{x} \] Plot five points on the graph of the function, and also draw the asymptote. Then click on the graph-a-function butt

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When AgNO3 solution is added to a flask originally containing 0.0300 M NaCl and 0.0300 M NaBr, the more insoluble AgBr precipitates first. What is the concentration of Br- remaining in the flask when AgCl first precipitates? Assume that adding the AgNO3 solution makes only a negligible change in total volume. AgCl Ksp = 1.80 × 10-10; AgBr Ksp = 5.00 × 10-13

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Question: A patient goes to see a doctor. The doctor performs a test with 99 percent reliability--that is, 99 percent of people who are sick test positive and 99 percent of the healthy people test negative. The doctor knows that... A patient goes to see a doctor. The doctor performs a test with 99 percent reliability- - that is, 99 percent of people who are sick test positive and 99 percent of the healthy people test negative. The doctor knows that only 1 percent of the people in the country are sick. Now the question is: if the patient tests positive, what are the chances the patient is sick?

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Discuss the principles of operation of a waveguide. What are the different types of waveguides, and where are they commonly used?

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Laplace Transforms-Inverse Laplace Transform with Partial Fractions: Problem 3 (1 point) 8s^2 + 4s + 20 Consider the function $F(s) = \frac{8s^2 + 4s + 20}{s^3 + 4s}$. a. Find the partial fraction decomposition of $F(s)$: \frac{8s^2 + 4s + 20}{s^3 + 4s} = \boxed{} + \boxed{} b. Find the inverse Laplace transform of $F(s)$. f(t) = \mathcal{L}^{-1} \{F(s)\} = \boxed{} help (formulas)

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Determine the minimum number of turns necessary to make a 10 mH inductor from a toroid with the below combined equivalent magnetic parameters? N turns ? 44 ? 39 ? 28 ? 52 ? none of these answers are correct ? 49 A_{eq} = 10 [cm^2] l_{eq} = 30 [cm] \mu_r = 1000 [-]

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Use the differential element shown to determine the moments of inertia of the triangular area about the x- and y-axes. Also determine the polar moment of inertia about point O.

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Given a CSV file with a string of integers, create a method that will read it line by line, sort it in ascending order, and then write it back to the file as strings. The input file may contain blank lines. How can this be done using a Scanner object and taking into account those blank lines? Please answer in Java.

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celia c.