Question

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:

Step 1 How would you run this test in MINITAB (Menus, Functions used)?  

Step 2) Verify all assumptions required for this test:                                                                                                       
                                                                                                                                                                                                               

Step 3) State the null and alternate hypotheses for this test:

                                Null hypothesis                                                                                                                                                

                                Alternate hypothesis   

Step 4 Interpret your decision within the context of the problem: what is your conclusion?                                                                                                           

		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 Events	683	742	491	420	374

Answer 1