Managers at an automobile manufacturing plant would like to estimate the mean completion time of an...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, u. The managers plan to choose a random sample of completion times and estimate ju via the sample. Assuming that the standard deviation of the population of completion times is 10.1 minutes, what is the minimum sample size needed for the managers to be 95% confident that their estimate is within 1.7 minutes of u? Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list of formulas.) Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, u. The managers plan to choose a random sample of completion times and estimate ju via the sample. Assuming that the standard deviation of the population of completion times is 10.1 minutes, what is the minimum sample size needed for the managers to be 95% confident that their estimate is within 1.7 minutes of u? Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list of formulas.)
Expert Answer:
Related Book For
Essentials of Business Statistics Communicating With Numbers
ISBN: 978-0078020544
1st edition
Authors: Sanjiv Jaggia, Alison Kelly
Posted Date:
Students also viewed these mathematics questions
-
The U. S. Census Bureau would like to estimate the average annual contributions to charity by the members of Generation Y (people born in the United States in the years 1981 through 1991). The...
-
An economist would like to estimate the 95% confidence interval for the average real estate taxes collected by a small town in California, ravaged by the economic crisis. In a prior analysis, the...
-
The Pear Tree would like to estimate the mean amount spent by their customers at their weekend brunch during the summer. The population estimate of the standard deviation is 30 and they want the mean...
-
An abc-sequence set of voltages feeds a balanced three-phase wye-wye system. The line and load impedances are and , respectively. If the load voltage on the a phase is , determine the voltages at the...
-
Assume the following exchange rates: $2 = 1 in New York 410 = 1 in London 200 = $1 in Tokyo Indicate how profitable triangular, or three-point, arbitrage can take place.
-
Laugier and Richon (J. Chem. Eng. Data, 40:153, 1995) report the following data for the H 2 S + benzene system at 323 K and 2.010 MPa: x 1 = 0.626; y 1 = 0.986. (a) Quickly estimate the vapor-liquid...
-
What do we mean by the term relevant evidence?
-
1. In each situation, what are the main financial planning issues that need to be addressed? 2. What additional information would you like to have before recommending actions in each situation? 3....
-
A certain wolf population, p(t), is governed by the differential equation: P = 0.3p(1 p), where p is the population (in thousands), and t is the time in years. If the current size of the population...
-
Go to the website www.cedarfair.com and click on Investors, then Investor Information, Financial Reports, and Annual Reports. Then click on 2017 Annual Report on 10-K to access the 2017 Form 10-K...
-
A customer contacts you because their consolidated ocean shipment has arrived completely water damaged. Create scripts detailing either phone calls (first script) and/or email interactions with this...
-
Water at \(10^{\circ} \mathrm{C}\) is in crossflow over the tubes of a shell-and-tube heat exchanger. The mass flow rate is \(1 \mathrm{~kg} / \mathrm{s}\left(6 \mathrm{~m} / \mathrm{s} ight.\)...
-
Natural convection and radiation are often linked because they can be of the same order of magnitude at temperatures around room temperature. In air, for example, assuming graybodies of emissivity...
-
Explain why the net heat exchange between two blackbodies at temperatures \(T_{1}\) and \(T_{2}\), \(q_{12}(B B)\), is greater than the net heat exchange between two graybodies, \(q_{12}(G B)\), at...
-
While performing a certain task under simulated weightlessness, the pulse rate of 32 astronaut trainees increased on the average by 26.4 beats per minute with a standard deviation of 4.28 beats per...
-
Suppose that at a price of \($6\) per unit, quantity demanded is 12 units. Calculate the quantity demanded when the marginal revenue is \($6\) per unit.
-
The relationship between a market-based economic system and economic development, explain why Argentina has failed to shift toward a market-based system? What are the key factors that determine...
-
Danielle has an insurance policy with a premium of $75 per month. In September she is in an accident and receives a bill worth $2990 for the repair of her own property. Her deductible is $250 and her...
-
Consider the following population data: a. Calculate the range. b. Calculate MAD. c. Calculate the population variance. d. Calculate the population standarddeviation. 34 42 12 10 22
-
A multinomial experiment produced the following results: Can we conclude at the 1% significance level that the population proportions are notequal? Category Frequency 4 1 2 57 63 70
-
A recent poll of 1,079 adults finds that 51% of Americans support Arizonas stringent new immigration enforcement law, even though it may lead to racial profiling (New York Times/CBS News, April 28May...
-
Describe how to determine the \(x\) component of the position of an object at a specific instant, given (a) a graph of position \(x\) as a function of time \(t\) and (b) an equation for \(x(t)\).
-
In an \(x(t)\) curve, what is the significance of a steep slope as opposed to a gentle slope? What is the significance of a curve that slopes downward as you move from left to right along the time...
-
The \(x\) component of a car's velocity increases from 0 to \(+5.0 \mathrm{~m} / \mathrm{s}\) in \(1.0 \mathrm{~s}\), and then from \(+5.0 \mathrm{~m} / \mathrm{s}\) to \(+10 \mathrm{~m} /...
Study smarter with the SolutionInn App