A student wanted to determine whether the wait time in the drive through at McDonald’s differed from that at Jollibee’s. She used a random sample of 30 cars at McDonald’s and 27 cars at Jollibee and obtained these results (in seconds):Wait Time at Mcdonalds 51.09126.62101.03191.6147.2871.37141.78111.84131.69122.06137.986.31140.44121.21128.75115.66100.04246.59227.38116.7295.09126.9181.43153.34127.35131.21100.94122.62195.44156.34Wait Time at Jollibee281.9174.43110.55187.53119.61182.54196.84204.29390.5284.48190.91386.71123.66171.01133.56203.62270.82110.6471.02385.9183.79199.86128.59183.79233.65471.62 363.34155.53 a) Is there a difference in wait times at each restaurant’s drive-through? Use 0.1 level of significance.b) Create a graph to compare the two data sets. Ensure that the graph shows visual evidence that support the results that you obtained in Part a)

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Description: A student wanted to determine whether the wait time in the drive through at McDonald’s differed from that at Jollibee’s. She used a random sample of 30 cars at McDonald’s and 27 cars at Jollibee and obtained these results (in seconds):Wait Time at Mc

given n1 = 30 n2=27 hypothesis null hypothesis : there is no significance difference between the…

Answered: Is there a difference in wait times at…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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A student wanted to determine whether the wait time in the drive through at McDonald’s differed from that at Jollibee’s. She used a random sample of 30 cars at McDonald’s and 27 cars at Jollibee and obtained these results (in seconds):

Wait Time at Mcdonalds

51.09	126.62	101.03
191.6	147.28	71.37
141.78	111.84	131.69
122.06	137.9	86.31
140.44	121.21	128.75
115.66	100.04	246.59
227.38	116.72	95.09
126.91	81.43	153.34
127.35	131.21	100.94
122.62	195.44	156.34

Wait Time at Jollibee

281.9	174.43	110.55
187.53	119.61	182.54
196.84	204.29	390.5
284.48	190.91	386.71
123.66	171.01	133.56
203.62	270.82	110.64
71.02	385.9	183.79
199.86	128.59	183.79
233.65	471.62
363.34	155.53

a) Is there a difference in wait times at each restaurant’s drive-through? Use 0.1 level of significance.
b) Create a graph to compare the two data sets. Ensure that the graph shows visual evidence that support the results that you obtained in Part a)

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Is there a difference in wait times at each restaurant’s drive-through? Use 0.1 level of significance. b) Create a graph to compare the two data sets. Ensure that the graph shows visual evidence that support the results that you obtained in Part a)