8) Fast Food A outlet claims that they will serve faster than fast food outlet B.. To test this claim, time in minutes from entering the outlet for receiving the order was secretly recorded for 10 recordings in both the outlets. Then which of the following tests do we use to test the hypothesis? Paired T-test with 20 degree of freedom Z-test Two sample t-test with 19 degrees of freedom x² test with 20 degrees of freedom
Added by Olivia M.
Close
Step 1
The claim is that fast food outlet A serves faster than outlet B. Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 92 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Between Wendy's and Mcdonald's which drive through window is faster? To answer this question a random sample of service times for each restaurant was measured. At Wendy's, 213 cars were timed and they were served in an average time of 149.85 seconds with a standard deviation of 21.82; At Mcdonalds 202 cars were timed and were served in an average time of 154.43 seconds with a standard deviation of 23.64. Can we infer from this study that there are differences in service times between the two chains? Use alpha =.05
Dominador T.
In a study of the accuracy of fast food drive-through orders, one restaurant had 33 orders that were not accurate among 400 orders observed. Use a 0.10 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? Identify the null and alternative hypotheses for this test. Choose the correct answer below. The test statistic for this hypothesis test is The P-value for this hypothesis test is Identify the conclusion for this hypothesis test.
Qudsiya A.
8. Accuracy of Fast Food Drive-Through Orders In a study of Burger King drive-through orders, it was found that 264 orders were accurate and 54 were not accurate. For McDonald’s, 329 orders were found to be accurate while 33 orders were not accurate (based on data from QSR magazine). Use a 0.05 significance level to test the claim that Burger King and McDonald’s have the same accuracy rates. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. c. Relative to accuracy of orders, does either restaurant chain appear to be better?
Nick J.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD