You are contacted by the top cookie-selling Girl Scout troop in the city. As part of their sales plan for next year’s cookie selling season, they need to know (with 90% confidence) if the types of cookies purchased by their customers depends on where the scouts sell them. Here is their confidential sales data from last year:
GIRL SCOUT COOKIES
You are contacted by the top cookie-selling Girl Scout troop in the city. As part of their sales plan for next year’s cookie selling season, they need to know (with 90% confidence) if the types of cookies purchased by their customers depends on where the scouts sell them. Here is their confidential sales data from last year:
|
|
Type of Cookie Sold |
||||
|
|
Thin Mints |
Tagalongs |
Do-si-dos |
Trefoils |
Samoas |
Sales Method |
At parents’ workplace |
472 |
641 |
350 |
223 |
401 |
Door-to-Door |
840 |
1092 |
673 |
511 |
542 |
|
Community |
683 |
742 |
491 |
420 |
374 |
What type of hypothesis test is required here? Verify all assumptions required for this test:
State the null and alternate hypotheses for this test:
Run the correct test using a software and provide the information below. Use correct symbols and round answers to 3 decimal places.
Test Statistic = Degrees of freedom =
Critical Value = p-value =
Fill-in the
(Hint: use the output of the statistical test you ran above!)
|
|
Type of Cookie Sold |
||||
|
|
Thin Mints |
Tagalongs |
Do-si-dos |
Trefoils |
Samoas |
Sales Method |
At parents’ workplace |
|
|
|
|
|
Door-to-Door |
|
|
|
|
|
|
Community Events |
|
|
|
|
|
State your statistical decision (and justify it!) Interpret your decision within the context of the problem: what is your conclusion?
![](/static/compass_v2/shared-icons/check-mark.png)
Step by step
Solved in 4 steps with 4 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)