b. Use the p-value approach at a 0.01 level of significance, to determine if there is evidence that the completion time has improved.What is the p-value for this test?p-value =(Give your answer as a decimal rounded to four decimal places, not as a percentage.) Deliveroo is an online food delivery company founded in London. Recently they upgraded their Australian IT systems to better allocate which orders arebatched together with which drivers and their associated transport vehicle (Car, Motorbike, Bicycle, .).They are now measuring the (hoped) improvement in the average time between a customer submitting an order and the delivery of that order to thecustomer (called the completion time). Prior the upgrade, the mean completion time was 30 mins. A random sample of 49 orders placed with the newIT has a mean completion time of 27.2 minutes with a 6 min sample standard deviation.a. Use the critical value approach at a 0.01 level of significance, to determine if there is evidence that the completion time has improved.The null and alternative hypotheses for this test are:Ο Α. Ho μs 27.2H1: H> 27.2Ο Β. Ho: μ3 0H1:µ<30O C. Ho: μ> 30H1:Hs 30O D. Ho: H2 27.2Ο Ε. Ho: μ< 30H1: µ2 30Ο F. Ho μ< 30H4: H<27.2H1: µ> 30What is the test statistic for this test?tSTAT =|(Round your answer to two decimal places.)What is(are) the critical value(s) for this test?(Round your answer to two decimal places. Use commas to separate your answers as needed.)

Given , Sample size = n = 49 Sample mean = x¯ = 27.2 Sample standard deviation = s = 6 The mean…

Answered: Deliveroo is an online food delivery…

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 blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current world record stands at 143 pounds, which was caught in the John H. Kerr Reservoir (Bugg's Island Lake) located in Virginia. According to American Expedition, the average weight of a blue catfish is between 20 to 40 pounds. Given that the largest blue catfish ever caught was at the John H. Kerr Reservoir, you believe that the mean weight of the fish in this reservoir is greater than 40 pounds. Use the data below, which represents the summary statistics for 50 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds. n=50 ; ¯x=40.49 pounds; s=3.49 pounds a) Identify the null and alternative hypotheses? H0: H1: b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed c) Identify the appropriate significance…
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The blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current world record stands at 143 pounds, which was caught in the John H. Kerr Reservoir (Bugg's Island Lake) located in Virginia. According to American Expedition, the average weight of a blue catfish is between 20 to 40 pounds. Given that the largest blue catfish ever caught was at the John H. Kerr Reservoir, you believe that the mean weight of the fish in this reservoir is greater than 40 pounds. Use the data below, which represents the summary statistics for 48 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds.

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