14. A potato chip manufacturer regularly inspects bags of chips to make sure there aren't too many below theadvertised weight of 32 ounces. Each hour they take a random sample of 10 bags of chips, calculate the firstquartile (Q.) for the sample of weights, and adjust the machine if Q, is significantly less than 32 ounces.(a) Define the parameter of interest and state the hypotheses the manufacturer wants to test.Q1 =bnsH,:Here are the weights of 10 bags from one random sample.Bag Number1.356.7.8.9.10Weight (ounces) 31.1 31.8 34.6 33.3 29.9 30.2 32.1 32.6 31.9 31.2(b) State the evidence for the alternative hypothesis provided by these data.(c) Is it plausible that the population of bag weights is approximately Normally distributed? Explain.(d) A simulation was conducted where 100 random samples of size 10 were generated from a Normal populationwhere the value of Q. was 32. The sample Qi for each of these samples was computed and is displayed below.Use the results of this simulation to test the hypotheses in part (a).29.530030.531.031.532.032533033.5Simulated Sample Qs

A random sample of 10 bags per hour is taken, first quartile is calculated and the machine is…

Answered: 14. A potato chip manufacturer…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose we want to predict job performance of Chevy mechanics based on mechanical aptitude test scores and test scores from personality test that measures conscientiousness. mech aptitude conscientiousness job performance x1 x2 y 40 25 1 45 20 2 38 30 1 50 30 3 48 28 2 55 30 3 53 34 3 55 36 4 58 32 4 40 34 3 55 38 5 48 28 3 45 30 3 55 36 2 60 34 4 60 38 5 60 42 5 65 38 5 50 34 4 58 38 3 Please use excel to find a line to minimize the absolute deviation. It is fine if you do not need to write down the formulation, but please print out the excel solutions and find the coefficients a1,a2, b of the line:y= a1 x1+ a2 x2+ b
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Resistors labeled as 100 Ω are purchased from two different vendors. The specification for this type of resistor is that its actual resistance be within 5% of its labeled resistance. In a sample of 180 resistors from vendor A, 149 of them met the specification. In a sample of 270 resistors purchased from vendor B, 233 of them met the specification. Vendor A is the current supplier, but if the data demonstrate convincingly that a greater proportion of the resistors from vendor B meet the specification, a change will be made. P-value?
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1. A company is considering purchasing an expensive piece of machinery which it hopes will reduce the amount of time it takes to manufacture its product, but which might actually have the reverse effect and increase (slow down) production time. Currently (without the new machine), it takes an average of 55.5 seconds to manufacture the product. The company decides to test the new machine for a few days to see whether it speeds up or slows down production. a) State the null and the alternative hypotheses that the company wishes to test. b) With α ≤ .05, state the decision rule. c) The company randomly selects 50 of the products made by the new machine and finds that these took an average of 54 seconds to make, with a standard deviation of 6.5 seconds. Test the company's hypotheses and make a decision/conclusion about them. d) Use the sample data from part 'c' to form a 99% confidence interval to estimate the mean time of production of the population of products that could be…
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