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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 u via the sample. Assuming that the standard devlation of the population of completion times is 10.1 minutes, what is the minimum sample size needed for the managers to be 99 % confident that their estimate is within 2.0 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.) 5 ?

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 u via the sample. Assuming that the standard devlation of the population of completion times is 10.1 minutes, what is the minimum sample size needed for the managers to be 99 % confident that their estimate is within 2.0 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.) 5 ?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 25SGR
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O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Choosing an appropriate sample size Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, p. The managers plan to choose a random sample of completion times and estimate u via the sample. Assuming that the standard devlation of the population of completion times is 10.1 minutes, what is the minimum sample size needed for the managers to be 99% confident that their estimate is within 2.0 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.) Explanation Check &. h k m ctri の 360 Chromebook. SE YOUR SMARTRHONLFO Wevieas s Feato SpecsS t
Transcribed Image Text:O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Choosing an appropriate sample size Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, p. The managers plan to choose a random sample of completion times and estimate u via the sample. Assuming that the standard devlation of the population of completion times is 10.1 minutes, what is the minimum sample size needed for the managers to be 99% confident that their estimate is within 2.0 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.) Explanation Check &. h k m ctri の 360 Chromebook. SE YOUR SMARTRHONLFO Wevieas s Feato SpecsS t
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