STA644 Assignment 1 Solution and discussion


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    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

    –The End –


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