The amount of time that a drive-through bank teller spends on a customer is a randomvariable with a mean μ = 6.3 minutes and a standard deviation o= 3.2 minutes. If arandom sample of 64 customers is observed, find the probability that their mean time atthe teller's window is(a) at most 5.7 minutes;(b) more than 6.7 minutes;(c) at least 6.3 minutes but less than 7.1 minutes.Click here to view page 1 of the standard normal distribution table.Click here to view page 2 of the standard normal distribution table.(a) The probability that the mean time is at most 5.7 minutes is(Round to four decimal places as needed.) For an F-distribution, find(a) f0.05 with v₁ =6 and v₂ = 8;(b) f0.05 with V₁ = 8 and v₂ = 6;Click here to view page 1 of the table of critical values of the f-distribution, for alpha =0.01.(c) f0.01 with v₁ = 10 and v₂ = 24;(d) fo.95 with v₁ = 24 and v₂ = 10;(e) fo.99 with V₁ 1 = 7 and v₂ = 9.Click here to view page 2 of the table of critical values of the f-distribution, for alpha=0.01.Click here to view page 1 of the table of critical values of the f-distribution, for alpha=0.05.Click here to view page 2 of the table of critical values of the f-distribution, for alpha=0.05.(a) fo.05 = 3.58 (Round to two decimal places as needed.)(b) fo.05= 4.15 (Round to two decimal places as needed.)(c) f0.01=(Round to two decimal places as needed.)

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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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The amount of time that a drive-through bank teller spends on a customer is a random variable with a mean μ = 7.5 minutes and a standard deviation o=3.6 minutes. If a random sample of 81 customers is observed, find the probability that their mean time at the teller's window is (a) at most 6.7 minutes; (b) more than 7.9 minutes; (c) at least 7.5 minutes but less than 8.1 minutes. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. (a) The probability that the mean time is at most 6.7 minutes is (Round to four decimal places as needed.) (b) The probability that the mean time is more than 7.9 minutes is (Round to four decimal places as needed.) (c) The probability that the mean time is between 7.5 minutes and 8.1 minutes is (Round to four decimal places as needed.) 4
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The amount of time that a drive‐through bank teller spends on a customer is a random variablewith a mean of 6.7 minutes and a standard deviation of 3.2 minutes. If a random sample of 64customers is observed, find the probability that their mean time at the teller’s window is: More than 7.1 minutes
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The amount of time that a drive‐through bank teller spends on a customer is a random variablewith a mean of 6.7 minutes and a standard deviation of 3.2 minutes. If a random sample of 64customers is observed, find the probability that their mean time at the teller’s window is: At most 5.7 minutes

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