MATH 300 Statistics UNIT 5 MILESTONE 5 EXAM Graded A 22nd Dec 2022
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Course
MAT 300
Institution
Vrije Universiteit Amsterdam (VU)
/11/2021 Sophia :: Welcome
Sampling With or Without Replacement
2
The table below shows the results of a customer satisfaction survey at a particular restaurant broken down by
males and females.
Male Female
Extremely Satisfied 25 7
Satisfied 21 13
Neutral 13 16
math 300 statistics unit 5 milestone 5 exam graded a
math 300 statistics unit 5
statistics unit 5 milestone 5 exam
statistics unit 5 milestone 5 exam graded a
Written for
Vrije Universiteit Amsterdam (VU)
Math 300 satatistics
MAT 300
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2/11/2021 Sophia :: Welcome
Score 23/24
You passed this Milestone
23 questions were answered correctly.
UNIT 5 — MILESTONE 5
1 question was answered incorrectly.
1
One condition for performing a hypothesis test is that the observations are independent. Marta is going to take a
sample from a population of 600 students.
How many students will Marta have to sample without replacement to treat the observations as
independent?
120
300
60
540
RATIONALE
In general we want about 10% or less to still assume independence.
Assuming all 5 choices are equally likely, select the observed and expected frequency for male customers
that are dissatisfied.
Observed: 14
Expected: 9
Observed: 9
Expected: 12.5
Observed: 9
Expected: 25
Observed: 9
Expected: 14
RATIONALE
If we simply go to the chart then we can directly see the observed frequency for male customers who are
dissatisfied is 9.
To find the expected frequency, we need to find the number of
occurrences if the null hypothesis is true, which in this case, was that the five options are equally likely, or if the
five options were all evenly distributed.
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