WEBCAM RECORDINGAnswer the following questions:Limits of the confidence interval of the original production process (expressed in numerical form, with two decimal digits)Lower limit LL:Upper limit UL:Compute the probability that the systematic factor is NOT identified (expressed in PERCENTAGE form, using 2 decimal digits)The probability computed in the previous question is an error of:In the case the production process regards a limited number of components, which distribution should have been used in the former probabilitycomputation?PreviousNext WEBCAM RECORDINGAmechanical components production process is controlled by measuring a length dimension X normaly distributed with average jl and standarddeviation a. A systematic factor affects the process leading the variable to distribute according to a normal distribution with parameters /l1 and 71.Assuming a confidence level P, estimate the probability that the modification exhibits no change from the original production process,Data:l=217 mmaa11 mm41-278 mmO1=13 mmConfidence level Ps 90.73%Answer the following questions:Limits of the confidence interval of the original production process (expressed in numerical form, with two decimal digits):Lower limit LL:

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Answer the following questions: Limits of the confidence interval of the original production process (expressed in numerical form, with two decimal digits) Lower limit LL: Upper limit UL: Compute the probability that the systematic factor is NOT identified (expressed in PERCENTAGE form, using 2 decimal digits) The probablity computed in the previous question is an error of In the case the production process regards a limited number of components, which distribution should have been used in the former probability computation?

Answer the following questions: Limits of the confidence interval of the original production process (expressed in numerical form, with two decimal digits) Lower limit LL: Upper limit UL: Compute the probability that the systematic factor is NOT identified (expressed in PERCENTAGE form, using 2 decimal digits) The probablity computed in the previous question is an error of In the case the production process regards a limited number of components, which distribution should have been used in the former probability computation?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Thirty-four small communities in Connecticut (population near 10,000 each) gave an average of x = 138.5 reported cases of larceny per year. Assume that σ is known to be 41.1 cases per year. (a) Find a 90% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.) lower limit 1 upper limit 2 margin of error 3 (b) Find a 95% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.) lower limit 4 upper limit 5 margin of error 6 (c) Find a 99% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.) lower limit 7 upper limit 8 margin of error 9 (d) Compare the margins of…
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Q1:A certain dimension is measured on four successive items coming offa production line. This sample gives x = 2.384 and s = 0.048.a) On the basis of this sample, what is the 95% confidence interval for the population mean?b) If instead of estimating the standard deviation from a sample, we knewthe true standard deviation was 0.048, what then would be the 95%confidence interval for the population mean?
Thirty-one small communities in Connecticut (population near 10,000 each) gave an average of x = 138.5 reported cases of larceny per year. Assume that σ is known to be 41.1 cases per year. (a) Find a 90% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.) lower limit upper limit margin of error (b) Find a 95% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.) lower limit upper limit margin of error (c) Find a 99% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.) lower limit upper limit margin of error (d) Compare the margins of…
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Suppose that the waiting times for patients at a local hospital are normally distributed with known population standard deviation of 30 minutes. A random sample of 75 patients in the local hospital had a mean time of 90 minutes. Assume a 95% confidence interval for the population mean u. The formula used to calculate the standard error is O A. o//n O B. o/n O C. 0/n2 O D. o? /n
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Consider a confidence interval, with confidence coefficient 1 - a, for the mean of a normal distribution with known variance o?, based on a random sample of n observations. How does the width of the interval change (i) as n is increased, keeping o? and a fixed; (ii) as o? is increased, keeping n and a fixed; (iii) as a is decreased, keeping n and o? fixed? The standard deviation of the lifetime of a certain type of electrical component is 144 hours. How large a sample of the components must be taken to be (a) 95%, (b) 99% confident that the error in the estimated mean lifetime of such components will not exceed (i) 15 hours, (ii) 20 hours?
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Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t Subscript alpha divided by 2tα/2, (b) find the critical value z Subscript alpha divided by 2zα/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: nequals=165, x overbarxequals=33.9 hg, sequals=6.7 hg. The confidence level is 99%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. t Subscript alpha divided by 2tα/2equals=nothing (Round to two decimal places as needed.) B. z Subscript alpha divided by 2zα/2equals=nothing (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies.