STA644 Assignment 1 Solution and discussion
Course Title Non Parametric Statistics
Course Code STA644
Activity Assignment # 1
Submission Deadline Date: Wednesday, Nov 27, 2019
Time: 23:59 Hours (Midnight)
Instructions to attempt assignment:
• You can use/make a single table for all necessary computations.
• Use calculator for calculations.
• Write the complete formulas and all steps, wherever necessary.
• For writing symbols, use Math Type software. If you already did not download it, get it from here.
• Make your own attempt, any copy/past; cheating from other student/website may result in ZERO marks and/or assignment cancelation.
STA644(Non Parametric Statistics)
Assignment # 1
Researchers have conducted a survey of 1600 coffee drinkers asking how much coffee they drink in order to confirm previous studies. Previous studies have indicated that 72% of Americans drink coffee. The results of previous studies (Table #1) and the survey (Table #2) are below.
At α = 0.05, is there enough evidence to conclude that the distributions are the same?
Table # 1
Response % of Coffee Drinkers (E) 2 cups per week 15% 1 cup per week 13% 1 cup per day 27% 2+ cups per day 45%
Table # 2
Response Frequency (O) 2 cups per week 206 1 cup per week 193 1 cup per day 462 2+ cups per day 732
Hint: For E column in Table#1: E = 0.15 × 1600 = 240
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