Question
In: Advanced Math
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results...
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected. Friday the 6th: 10 5 11 11 4 4 Friday the 13th: 14 11 14 10 6 12 .
Identify the critical value(s). The critical values are t= ±
2.0152.015.
Solutions
Expert Solution
We calculate the mean and standard deviation of both the samples as :
For Friday the 6th,
For Friday the 13th,
We conduct the T-test for two means as :
Hence, there is not enough
evidence to conclude that the numbers of hospital admissions from
motor vehicle crashes are affected at 5% level of significance.
Colby Messinger answered 2 years agoRelated Solutions
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results...
Researchers collected data on the numbers of hospital admissions
resulting from motor vehicle crashes, and results are given below
for Fridays on the 6th of a month and Fridays on the following 13th
of the same month. Use a 0.05 significance level to test the claim
that when the 13th day of a month falls on a Friday, the numbers
of hospital admissions from motor vehicle crashes are not affected.
Friday the 6th: 10 6 12 12 3 4 Friday...
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results...
Researchers collected data on the numbers of hospital admissions
resulting from motor vehicle crashes, and results are given below
for Fridays on the 6th of a month and Fridays on the following 13th
of the same month. Use a 0.05 significance level to test the claim
that when the 13th day of a month falls on a Friday, the numbers
of hospital admissions from motor vehicle crashes are not
affected.
Friday the 6th: 9, 6, 12, 12, 3, 4
Friday...
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results...
Researchers collected data on the numbers of hospital admissions
resulting from motor vehicle crashes, and results are given below
for Fridays on the 6th of a month and Fridays on the following 13th
of the same month. Use a 0.05 significance level to test the claim
that when the 13th day of a month falls on a Friday, the numbers
of hospital admissions from motor vehicle crashes are not affected.
Friday the 6th: 9 6 12 12 4 4 Friday...
Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results...
Researchers collected data on the numbers of hospital admissions
resulting from motor vehicle crashes, and results are given below
for Fridays on the 6th of a month and Fridays on the following 13th
of the same month. Use a 0.05 significance level to test the claim
that when the 13th day of a month falls on a Friday, the numbers
of hospital admissions from motor vehicle crashes are not
affected.
Friday the 6th:
10
5
12
12
3
6
Friday...
6. Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and...
6. Researchers collected data on the numbers of hospital
admissions resulting from motor vehicle crashes, and results are
given below for Fridays on the 6th of a month and Fridays on the
following 13th of the same month. Use a 0.05 significance level to
test the claim that when the 13th day of a month falls on a
Friday, the numbers of hospital admissions from motor vehicle
crashes are not affected.
Friday the 6th: Friday the 13th:
10
15
6 ...
Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for...
Data on the numbers of hospital admissions resulting from motor
vehicle crashes are given below for Fridays on the 6th of a month
and Fridays on the following 13th of the same month. Assume that
the paired sample data is a simple random
sample and that the differences have a distribution that is
approximately normal. Construct a 95% confidence interval estimate
of the mean of the population of differences between hospital
admissions. Use the confidence interval to test the
claim...
Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for...
Data on the numbers of hospital admissions resulting from motor
vehicle crashes are given below for Fridays on the 6th of a month
and Fridays on the following 13th of the same month. Assume that
the paired sample data is a simple random sample and that the
differences have a distribution that is approximately normal.
Construct a 95% confidence interval estimate of the mean of the
population of differences between hospital admissions. Use the
confidence interval to test the claim...
Data has been collected on the number of hospital admissions resulting from car accidents for Fridays...
Data has been collected on the number of hospital admissions
resulting from car accidents for Fridays on the 6th of
the month and Fridays on the following 13th of the same
month. Test the superstition that there is a difference between the
mean admissions on the two days. Let alpha be .05.
6th 13th
9
13
6
12
11
14
11
10
3
4
5
12
1.) Listed below are the number of deaths in the United States resulting from motor vehicle...
1.) Listed below are the number of deaths in the United States
resulting from motor vehicle crashes.
a.) Create a scatterplot in StatCrunch and draw a sketch of it.
Make sure to label the x and y axis.
b.) Find the correlation coefficient, rounded to four decimal
places.
c.) Find the equation of the line of best fit.
d.) Is the correlation significant? Explain why or why not.
e.) Predict the number of deaths from motor vehicle crashes in
2015....
Data from the Motor Vehicle Department indicate that 80% of all licensed drivers are older than...
Data from the Motor Vehicle Department indicate that 80%
of all licensed drivers are older than age 25.
a. In a sample of n=50 people who recently received
speeding tickets, 33 were older than 25 years and the other 17 were
age 25 or younger. Is the age distribution for this sample
significantly different from the distribution for the population of
licensed drivers? Use α= 0.05.
b. In a sample of n=50 people who recently received
parking tickets, 36 were...
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