Fast Food Fast

1
Fast Food Fast

• By Monica McGrath Christine Malikowski

2
History

• Fast Food restaurants have been around since 1921
  when the first White Castle opened.
• First hamburger invented in 1916.
• First drive-thru restaurant invented in 1948.
• December 12, 1948 First McDonalds opened
• Burger King open in the1950s and Wendys came
  along in 1969

3
Is going thru the Drive Thru faster then going
Inside the Restaurant to get Fast Food?
4
How Did It Happen

• Picked a SRS of 3 types of each restaurant by
  using yellowpages.com
• At each place we gathered 10 times from getting
  food inside and 10 from going through the drive
  thru.

5
The Subjects

• KFC 2
• 490 N Main St
• Doylestown, PA 18901
• KFC 3
• 1719 N Broad St Lansdale, PA 19446
• Wendys 1
• 620 EASTON ROADWARRINGTON, PA 18976 US
• Wendys 2
• 400 N Main St Doylestown, PA 18901
• Wendys 3
• 755 York Rd Ste 204 Warminster, PA 18974
• McDonalds 1
• 2395 York Rd
• Jamison, PA 18929
• McDonalds 2
• 210 Inverness Cir Chalfont, PA 18914
• McDonalds 3
• 39 Doyle St Doylestown, PA 18901

• Burger King 1
• 60 Easton Rd Warrington, PA 18976
• Burger King 2
• 580 W Street Rd Warminster, PA 18974
• Burger King 3
• 560 N Main St Doylestown, PA 18901
• Chick-fil-A 1
• 160 Easton Rd
• Warrington, Pa 18976
• Chick-fil-A 2
• 4 West RoadNewtown, PA 18940-4301
• Chick-fil-A 3
• 2500 W Moreland Rd Willow Grove, PA 19090
• KFC 1
• 1865 Easton Rd
• Willow Grove, PA

6
Data for Going Inside
7
Data for Drive Thru
8
National Averages For Drive Thru
Name of Restaurant Time in Minutes Our Overall Average time(mins)
McDonalds 318 233
Burger King 339 235
Wendys 226 224
KFC 333 230
Chick-Fli-A 321 225
9
All Times
10
(No Transcript)
11
Drive Thru Times
12
5 Number Summary

• Inside Times
• Min 1.04
• Q1 1.29
• Med 2.10
• Q3 2.53
• Max 3.54

• Outside Times
• Min 1.01
• Q1 1.59
• Med 2.25
• Q3 2.50
• Max 3.56

13
The Tests

• Test 1- 2-Sample T-test testing whether the
  average drive thru time is equal to the average
  inside time
• Test 2- Mean difference test, Testing weather the
  average drive thru time found is equal to the
  national average for each restaurant visited

14
Assumptions

• State
• 2 independent SRS
• 2 Norm pops
• or
• n1gt 30
• n2gt 30

• Check
• Used yellowpages.com to find random restaurants
• 150 gt 30 (check)
• 150 gt 30 (check)

15
Test One
µ1 Inside times µ2 Drive Thru times

• Ho µ1 µ2
• Ha µ1gt µ2
• T -1.1533
• P(t gt -1.1533 df 27.6011) .87007

16
Conclusions

• We fail to reject ho because the p-value of
  .87007 is less then a .05.
• We have sufficient evidence that the average
  times of going through the drive thru of a fast
  food restaurant is greater then going inside.

17
Confidence Interval

• X (t)(s/ n) ( -.295, .62834)
• We are 99 confident that the mean difference of
  Drive thru times and inside times is between
  -.295 and .62834 mins.

18
Assumptions

• State
• SRS
• Normal Pop.
• or
• Nd gt 30

• Check
• Used yellowpages.com to find random restaurants
• 150 gt 30 check

19
Test Two

• Ho µd 0
• Ha µd ? 0
• T 4.0414
• P( t gt 4.0414df 4) .0156

20
Conclusion

• We reject Ho in favor of Ha because the p-value
  of .0156 is greater then a .05.
• We have sufficient evidence that the observed
  drive thru times were not equal to the national
  drive thru averages.

21
Margin Of Error

• ordering different things or amount in which you
  order
• different time of day (how busy)
• Number of people on shift
• who serves you
• timing not accurate(human error)

22
Personal Analysis

• The collection of data we did find somewhat
  difficult just because of the huge amount of data
  needed.
• We started out by buy all the food ourselves but
  then reverted to just timing people because of
  costs.
• Project was fun but challenging

23
Personal Thoughts Cont.

• The Results for test one were surprising because
  we expected the drive thru times to be faster.
• The results for test two were surprising also
  because they did not fit the national averages

24
Application

• We find this applicable to any person wanting to
  get food in a hurry.
• Not always is what people try to advertise is
  always true.
• Fast restaurant WENDYS