The accompanying data are drive-through service times (seconds) recorded at a fast food restaurant during dinner times. Assuming that dinner service times at the restaurant's competitor have standard deviation sigma equals 50.1 sec, use a 0.01 significance level to test the claim that service times at the restaurant have the same variation as service times at itscompetitor's restaurant. Use the accompanying data to identify the null hypothesis, alternative hypothesis, test statistic,and P-value. Then state a conclusion about the null hypothesis. a. Compute the test statistic. chi squared equals (Round to two decimal places as needed.) b. Find the P-value of the test statistic. The P-value of the test statistic is (Round to three decimal places as needed.)
The accompanying data are drive-through service times (seconds) recorded at a fast food restaurant during dinner times. Assuming that dinner service times at the restaurant's competitor have standard deviation sigma equals 50.1 sec, use a 0.01 significance level to test the claim that service times at the restaurant have the same variation as service times at itscompetitor's restaurant. Use the accompanying data to identify the null hypothesis, alternative hypothesis, test statistic,and P-value. Then state a conclusion about the null hypothesis. a. Compute the test statistic. chi squared equals (Round to two decimal places as needed.) b. Find the P-value of the test statistic. The P-value of the test statistic is (Round to three decimal places as needed.)
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 accompanying data are drive-through service times (seconds) recorded at a fast food restaurant during dinner times. Assuming that dinner service times at the restaurant's competitor have standard deviation sigma equals 50.1 sec, use a 0.01 significance level to test the claim that service times at the restaurant have the same variation as service times at itscompetitor's restaurant. Use the accompanying data to identify the null hypothesis, alternative hypothesis, test statistic,and P-value. Then state a conclusion about the null hypothesis.
a. Compute the test statistic.
chi squared equals
(Round to two decimal places as needed.)
b. Find the P-value of the test statistic.
The P-value of the test statistic is
(Round to three decimal places as needed.)
Transcribed Image Text:Below is the transcription of the table titled "Service Times (in minutes)":
| 285 | 136 | 177 | 196 |
|-----|-----|-----|-----|
| 179 | 164 | 147 | 174 |
| 141 | 138 | 112 | 158 |
| 99 | 159 | 250 | 136 |
| 149 | 279 | 176 | 135 |
| 91 | 84 | 213 | 182 |
| 268 | 154 | 162 | |
| 114 | 69 | 235 | |
| 139 | 69 | 212 | |
| 138 | 138 | 154 | |
| 127 | 241 | 251 | |
| 120 | 72 | 219 | |
| 120 | 192 | 168 | |
| 130 | 332 | 184 | |
| 154 | 128 | 174 | |
This table presents a dataset of service times recorded in minutes. The service times are organized into columns, each representing a separate set of data within the same context. The numbers reflect the duration of each service event.
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