A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 30 minutes. A sample of 49 orders using the new delivery processyields a sample mean of 27.8 minutes and a sample standard deviation of 5 minutes. Complete parts (a) through (d) below.a. Using the critical value approach, at the 0.01 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 30 minutes?State the null and alternative hypotheses for this test.O A. Ho: H5 30H: u> 30Ο Β . Ho: με 27.8O c. H μ2 30H: u<27.8H: u<30O D. Ho: us27.8O E. Ho: H> 30OF. Ho: H<30H4: µ> 27.8H,: us 30H,: µ2 30What is the test statistic for this test?ISTAT =O(Type an integer or a decimal. Round to two decimal places as needed.)What is(are) the critical value(s) for this test?(Type an integer or a decimal. Round to two decimal places as needed. Use commas to separate your answers as needed.)What is the conclusion for this test?Since the test statistic isV than the critical value,the null hypothesis and conclude that there isevidence that the population mean delivery time has been reduced below the previous population mean value of30 minutes.b. Using the p-value approach, at the 0.01 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 30 minutes?What is the p-value for this test?B valuo- OTune an intogor or a docimal Deund to threndocimal nlacee ne nnnded?Click to select vour answerls) A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 30 minutes. A sample of 49 orders using the new delivery processyields a sample mean of 27.8 minutes and a sample standard deviation of 5 minutes. Complete parts (a) through (d) below,b. Using the p-value approach, at the 0.01 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 30 minutes?What is the p-value for this test?p-value =(Type an integer or a decimal. Round to three decimal places as needed.)What is the conclusion for this test?Since the p-value isV than a,V the null hypothesis and conclude that there isV evidence that the population mean delivery time has been reduced below the previous population mean value of 30 minutes,c. Interpret the meaning of the p-value in this problem. Choose the correct answer below.O A. The p-value is the probability of selecting a sample of deliveries that has a mean delivery time of 30 minutes or more, given that the population mean delivery time is 27.8 minutes.O B. The p-value is the probability of selecting a sample of deliveries that has a mean delivery time of 27.8 minutes or less, given that the population mean delivery time is 30 minutes.O C. The p-value is the probability of selecting a sample of deliveries that has a mean delivery time of 30 minutes or less, given that the population mean delivery time is 27.8 minutes.O D. The p-value is the probability of selecting a sample of deliveries that has a mean delivery time of 27.8 minutes or more, given that the population mean delivery time is 30 minutes.d. Compare your conclusions in (a) and (b). Choose the correct answer below.O A. Using the critical value approach, the null hypothesis was not rejected and using the p-value approach the null hypothesis was not rejected. The critical value approach and the p-value approach are two different methods of finding thesame answer.O B. Using the critical value approach, the null hypothesis was rejected and using the p-value approach the null hypothesis was rejected. The critical value approach and the p-value approach are two different methods of finding the sameanswer.O C. Using the critical value approach, the null hypothesis was rejected and using the p-value approach, the null hypothesis was not rejected. The critical value approach and the p-value approach yield opposite results.O D. Using the critical value approach, the null hypothesis was not rejected and using the p-value approach, the null hypothesis was rejected. The critical value approach and the p-value approach yield opposite results.

Name: A manager of a pizza restaurant has changed the restaurant's delivery
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Description: A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 30 minutes. A sample of 49 orders using the new delivery processyields a

Given Information: μ=30 n=49 x¯=27.8 s=5 α=0.01

Math

Statistics

A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 30 minutes. A sample of 49 orders using the yields a sample mean of 27.8 minutes and a sample standard deviation of 5 minutes. Complete parts (a) through (d) below. a. Using the critical value approach, at the 0.01 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 30 minutes? State the null and alternative hypotheses for this test. O A. Ho: us30 H;:u> 30 O D. Ho: us27.8 O B. Ho: H227.8 OC. Ho: H230 H: u<27.8 H:u<30 O E. Ho: > 30 H4: us 30 OF. Ho: H<30 H,: u2 30 H4: u> 27.8 What is the test statistic for this test? ISTAT =O (Type an integer or a decimal. Round to two decimal places as needed.) What is(are) the critical value(s) for this test?

A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 30 minutes. A sample of 49 orders using the yields a sample mean of 27.8 minutes and a sample standard deviation of 5 minutes. Complete parts (a) through (d) below. a. Using the critical value approach, at the 0.01 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 30 minutes? State the null and alternative hypotheses for this test. O A. Ho: us30 H;:u> 30 O D. Ho: us27.8 O B. Ho: H227.8 OC. Ho: H230 H: u<27.8 H:u<30 O E. Ho: > 30 H4: us 30 OF. Ho: H<30 H,: u2 30 H4: u> 27.8 What is the test statistic for this test? ISTAT =O (Type an integer or a decimal. Round to two decimal places as needed.) What is(are) the critical value(s) for this test?

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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