The daily revenue at a university snack bar has been recorded for the past five years. Records indicate that the mean daily revenue is µ = 5690 euro and vary between days by a standard deviation of σ = 300 euro. The distribution is

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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  1. The daily revenue at a university snack bar has been recorded for the past five years. Records indicate that the mean daily revenue is µ = 5690 euro and vary between days by a standard deviation of σ = 300 euro. The distribution is skewed to the right due to several high volume days (football game days).
    Suppose a sample of n = 50 days are randomly selected and the sample average daily revenue computed.
    Answer the following questions :
    Question 1 :
    The sampling distribution of the mean is :
    a: Normal( 5690 , 300 2)
    b: Normal( 5690 , 42.43 2)
    c: Normal( 50 , 300 2)
    d: Normal( 50 , 42.43 2)
    Insert your choice ( a /b /c /d ) :
    Question 2: The sample average daily revenue was recorded to be 5708. Calculate how likely it was that the sample gave an average daily revenue greater than or equal to 5708 : . (4 decimal places)
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