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Mathematics Questions and Answers March 24, 2021

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(a) Find the margin of error for a 90%confidence interval for . Round the answer to at least three decimal places.The margin of error for a 90% confidence interval for is __ (b) If the confidence level were 99%, would the margin of error be larger or smaller? \f
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can anyone explain to me this question with working 2. Suppose you are technician working for a computer manufacturer. Your supervisor asks you to determine what percentage of the diodes used for a programmable logic board is defective given the following information. The mean voltage is x : 5.3 V and the standard deviation is s = 2.2 V. The range
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Find the area under the standard normal curve over the indicated interval and find the specified area. (Enter a number. Round your answer to four decimal places.) The area to the left of z =0.41is

In The lifetime T. in years, of a component is given by the exponential probability density function shown below. When asked to find time : = L, where a component is 5075 bely to exceed which of the following is correct, and why? If both are correct, explain why. If both are incorrect, explain why. Approach A: as = ) . * di Approach B 0.6 =1 -[ d
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Throughout this question, you should use algebra to work out your answers clearly showing your methods and explaining steps in your working. You may use a graph to check that your answers are correct, but it is not sufficient to read your results from a graph. (a) A straight line passes through the points and (5, -3). (i) Calculate the gradient of
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