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Question 1 (1 point)
A statistics professor wants to examine the number of hours that
seniors and freshmen study for the final. Specifically, the
professor wants to test if the average number of hours that seniors
study is greater than the average number of hours that freshmen
study. If the seniors are considered group 1 and the freshmen are
considered group 2, what are the hypotheses for this scenario?
Question 1 options:
1)
HO: μ1 ≤ μ2
HA: μ1 >...
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Suppose you work for a political pollster during an election
year. You are tasked with determining the projected winner of the
November election. That is, you wish to determine if the number of
votes for Candidate 1 is less than the votes for Candidate 2. What
are the hypotheses for this test?
1)
HO: μ1 = μ2
HA: μ1 ≠ μ2
2)
HO: μ1 > μ2
HA: μ1 ≤ μ2
3)
HO: μ1 ≤ μ2
HA: μ1 > μ2
4)...
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Suppose the national average dollar amount for an automobile
insurance claim is $788.5. You work for an agency in Michigan and
you are interested in whether or not the state average is greater
than the national average. The hypotheses for this scenario are as
follows: Null Hypothesis: μ ≤ 788.5, Alternative Hypothesis: μ >
788.5. You take a random sample of claims and calculate a p-value
of 0.0851 based on the data, what is the appropriate conclusion?
Conclude at the...
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It is reported in USA Today that the average flight cost
nationwide is $458.78. You have never paid close to that amount and
you want to perform a hypothesis test that the true average is
actually less than $458.78. The hypotheses for this situation are
as follows: Null Hypothesis: μ ≥ 458.78, Alternative Hypothesis: μ
< 458.78. You take a random sample of national flight cost
information and perform a one sample mean hypothesis test. You
observe a p-value of...
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Do sit down restaurant franchises and fast food franchises
differ significantly in stock price? Specifically, is the average
stock price for sit-down restaurants less than the average stock
price for fast food restaurants? A hypothesis test for two
independent samples is run on data recorded from the stock exchange
and a p-value is calculated to be 0.2585. What is the appropriate
conclusion?
Question 14 options:
1)
The average stock price of sit-down restaurants is
significantly less than the average stock...
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Ho: μ1 - μ2 = 0
Ha: μ1 - μ2 ≠ 0
When testing above hypotheses the test statistic t was found to
be 5.15. If the degrees of freedom = 40, then, the p-value for this
test would be
Question options:
a) less than zero
b) between 0 and 0.5
c) less than .005
d) greater than 1
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Part A
Suppose you work for a political pollster during an election
year. You are tasked with determining the projected winner of the
November election. That is, you wish to determine if the number of
votes for Candidate 1 is greater than the votes for Candidate 2.
What are the hypotheses for this test?
1)
HO: μ1 < μ2
HA: μ1 ≥ μ2
2)
HO: μ1 ≥ μ2
HA: μ1 < μ2
3)
HO: μ1 ≤ μ2
HA: μ1 >...
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It is believed that students who begin studying for final exams
a week before the test score differently than students who wait
until the night before. Suppose you want to test specifically that
students who study earlier have an average score that is different
from the average score for students who wait to study. What are the
hypotheses for this test if early studiers are group 1 and
procrastinators are group 2?
Question 13 options:
1)
HO: μ1 = μ2...
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Does the amount of hazardous material absorbed by the bodies of
hazardous waste workers depend on gender? You want to test the
hypotheses that the amount absorbed by men (group 1) is less than
the amount absorbed by women (group 2). A random sample of 231 male
workers and 197 female workers showed an average lead absorption in
the blood of 12.2 (SD = 0.774) and 12.21 (SD = 0.577), respectively
(measured in micrograms/deciliter). Assuming that the population
standard deviations...
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Consumers Energy states that the average electric bill across
the state is $123.29. You want to test the claim that the average
bill amount is actually different from $123.29. The hypotheses for
this situation are as follows: Null Hypothesis: μ = 123.29,
Alternative Hypothesis: μ ≠ 123.29. You complete a randomized
survey throughout the state and perform a one-sample hypothesis
test for the mean, which results in a p-value of 0.3178. What is
the appropriate conclusion? Conclude at the 5%...