Hypothesis Sample of two provided

Anonymous
timer Asked: Apr 11th, 2017

Question Description

I have sent you the instructors information, what i started on which will have the survey i am doing, and a past submission. My testing is dining experience inside and outside. For inside the number will be 19 or select the number of tables you want and outside will be 14. Any questions I will continue to check back. I need this by Monday the 17th so i can format or ask questions and have time to meet the deadline. Thanks

QA 345-E01: Chapter 11: Two Sample Tests of Hypotheses DUE DATE: Sunday, April 30, 2016 The short project/experiment is directly related to Learning Objective 2 from Chapter 11. Your final submission must be TYPED using the report format below. Points will be deducted for failure to follow directions. For this experiment, you must select two items to compare their means. Here are possible examples: • • • • • • • • • Mean Checkout time at Walmart’s regular lane vs Mean Checkout time at Walmart’s self-check Mean Wendys’ drive thru time vs. Mean McDonald’s drive-thru time Order and fulfillment time at McDonald’s vs. Order and Fulfillment time at Wendy’s (can be a combination of inside and drive-thru) McDonald’s inside time vs McDonald’s drive thru time $ Amount spent at Walmart vs $ Amount spent at Kroger Pizza Hut delivery time vs Papa John’s delivery time Zaxby’s service time vs Chic Fil A service time Travel time to work on route 1 vs. Travel time to work using route 2. Mean number of white cars on your way to school vs the mean number of black cars. *NOTES: 1. You are not limited to the examples I have listed above. These are some that students have done or suggested before. You can do any two mean comparisons. 2. If you do the amount of money spent at two different stores, you do not have to use Walmart and Kroger, but any two stores that you shop at (Dollar General vs Family Dollar; Walmart vs Kmart; etc.) 3. You do not have to use the specific restaurants listed above. You can use any restaurants that you visit. However, of course if one is fast-food, the other must also be fast food (so you can’t compare Applebee’s order fulfillment time vs McDonald’s order fulfillment time). 4. Your minimum sample size for each must be 5 . So if you do McDonald’s drive thru vs McDonald’s inside, you must record the time from at least 5 drive thru experiences and at least 5 inside ordering experiences. 5. The sample sizes do NOT have to be identical for the two samples. You could go through the drive thru 5 times and order inside 8 times. 6. For checkout time, ordering/fulfillment time, drive thru time, you should use the total time from entering the line until you receive your order. STATE EXPERIMENT: _______________________________________________________________ STATE HYPOTHESES: H0:______________________________________________________ H1:______________________________________________________ USE SIGNIFICANCE LEVEL: α = .05 Gather and record data for both samples Calculate mean for each sample Calculate standard deviation for each sample Calculate estimated pooled variance Calculate t -------------------------------------------------------------------------------------------------------- REPORT FORMAT: Cover page 12-point font (Calibri or Times New Roman) Report method: 1. Brief overview of what was tested and how the data was gathered. Include sample size for each sample, mean, and standard deviation. 2. State Hypotheses 3. State Significance Level 4. State critical t (explain how it was found) and decision rule 5. Calculate the test statistic (pooled t) 6. State Decision 7. Draw Conclusion 8. Upload completed project to Connect by Sunday, April 30th at 11:59 p.m. IF YOU HAVE ANY QUESTIONS, DO NOT HESITATE TO CONTACT ME ASAP! WAITING UNTIL THE LAST MINUTE WILL LIKELY CREATE PROBLEMS FOR YOU.
1. Overview of what was tested: Self Checkout 5 7 3.26 6.52 8.23 Express Lane 2 4 6.51 10.32 11.21 Summary statistics: Column Self Checkout Express Lane Mean Std. dev. 6.002 1.9203437 6.808 3.9623945 2. State hypotheses Two sample T hypothesis test: H0 : μ1 - μ2 = 0 HA : μ1 - μ2 ≠ 0 Hypothesis test results: Difference Sample Diff. μ1 - μ2 -0.806 1.969177 Std. Err. DF T-Stat P-value 8 -0.40930805 0.6931 3. State Significance level The 0.05 significance level is stated in the problem 4. State critical t and decision rule The variation between self-checkout and express lane shows that the express lane has a higher standard deviation. DF: 8 P(X ≤ -1.859548) = 0.05 Reject it. 5. Calculate the test statistic (pooled t) (with pooled variances) Hypothesis test results: Difference Sample Diff. μ1 - μ2 -0.806 1.969177 Std. Err. 8 DF T-Stat -0.40930805 6. State Decision Reject it. 7. Draw Conclusion The decision is to reject it because it falls to the left of the critical value. The data show evidence that There is a difference in the mean between the self-check-out and the Express checkout.
Running head: TWO SAMPLE TEST OF HYPOSTHESIS SHUCKUM’S OYSTER PUB AND SEAFOOD GRILL DINING INSIDE VS OUTSIDE JASMINE WILLIIMS MISSISSIPPI UNIVERSITY FOR WOMEN DR. KIMBERLY DORSEY APRIL 17, 2017 1 2 TWO SAMPLE TEST OF HYPOSTHESIS OVERVIEW The data was obtained at Shuckum’s Oyster Pub and Seafood Grilling, located in Panama City Beach, Florida. Many diners never consider wait times for being served inside or outside. Even, a consideration at times is not considered if it is louder inside, more comfortable inside, or if service is better. Personally, I prefer the outdoor dining experience where one can people watch, which can break that awkward silence sometimes we all experience at a dinner table. Each table that was observed was over the course of a two-hour period. I am sure the outside waitress hated me for taking so long, when they need to turn their tables much quicker. It was obvious the first hour observing those eating outside had a much more pleasant experience than those dining inside. Conversations were happening all around, people smiling, laughing, and just truly enjoying themselves and the scenery on Front Beach Road. In fact, most that came from dining inside I couldn’t see the same departure satisfaction. Those who came from inside the restaurant didn’t linger, couldn’t get out of there fast enough, or even glimpse and smile at anyone outside. Gather and record data for both samples Calculate mean for each sample Calculate standard deviation for each sample Calculate estimated pooled variance Calculate t 1. Brief overview of what was tested and how the data was gathered. Include sample size for each sample, mean, and standard deviation. 2. State Hypotheses 3. State Significance Level 4. State critical t (explain how it was found) and decision rule 5. Calculate the test statistic (pooled t) TWO SAMPLE TEST OF HYPOSTHESIS 6. State Decision 7. Draw Conclusion 3

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