rmally distributed population, would you have been okay to proceed in nstructing the interval given in blank #1? Why? Choose the best response as scribed below and enter your answer as 1, 2, 3 or 4. no the distribution is not symmetric and the sample size is not large no the distribution is extremely skewed even though the sample size is large yes the distribution is only slightly skewed and the sample size is large yes the t-procedures are always safe to use ank # 1 ank # 2
rmally distributed population, would you have been okay to proceed in nstructing the interval given in blank #1? Why? Choose the best response as scribed below and enter your answer as 1, 2, 3 or 4. no the distribution is not symmetric and the sample size is not large no the distribution is extremely skewed even though the sample size is large yes the distribution is only slightly skewed and the sample size is large yes the t-procedures are always safe to use ank # 1 ank # 2
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
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Question
![Blank #2: If you had not been told that the sample came from an approximately
normally distributed population, would you have been okay to proceed in
constructing the interval given in blank #1? Why? Choose the best response as
described below and enter your answer as 1, 2, 3 or 4.
(1) no the distribution is not symmetric and the sample size is not large
(2) no the distribution is extremely skewed even though the sample size is large
(3) yes the distribution is only slightly skewed and the sample size is large
(4) yes the t-procedures are always safe to use
Blank # 1
Blank # 2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F76305403-f421-4312-9b46-528ddd78d416%2Ff1e5f4a9-5738-477d-a24b-dcd88086e3a2%2F40dkcpl_processed.png&w=3840&q=75)
Transcribed Image Text:Blank #2: If you had not been told that the sample came from an approximately
normally distributed population, would you have been okay to proceed in
constructing the interval given in blank #1? Why? Choose the best response as
described below and enter your answer as 1, 2, 3 or 4.
(1) no the distribution is not symmetric and the sample size is not large
(2) no the distribution is extremely skewed even though the sample size is large
(3) yes the distribution is only slightly skewed and the sample size is large
(4) yes the t-procedures are always safe to use
Blank # 1
Blank # 2
![One of the two fire stations in a certain town responds to calls in the northern half
of the town, and the other fire station responds to calls in the southern half of the
town. The following is a list of response times (in minutes) for both of the fire
stations (this data will be used for several problems). Both samples may be regarded
as simple random samples from approximately normal populations so that the t-
procedures are safe to use.
Northern: 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 8, 8, 9, 9, 10, 10, 10, 10,
12
Sum = 192
Sum of Squared Deviations = 197.2
Southern: 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 7, 7, 8, 8, 8, 8, 8, 8, 9, 10, 10, 10, 12, 12, 12,
12, 13
Sum = 225
Sum of Squared Deviations = 231.5
Find and interpret a 95% confidence interval for the mean response time of the fire station that
responds to calls in the northern part of town. Fill in blank 1 to report the bounds of the 95% Cl.
Enter your answers as lower bound,upper bound with no additional spaces and rounding bounds
to two decimals.
Blank #1: 95% confident that the true mean response time of the fire station in the
northern part of town is between
and
_minutes.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F76305403-f421-4312-9b46-528ddd78d416%2Ff1e5f4a9-5738-477d-a24b-dcd88086e3a2%2F10fotfa_processed.png&w=3840&q=75)
Transcribed Image Text:One of the two fire stations in a certain town responds to calls in the northern half
of the town, and the other fire station responds to calls in the southern half of the
town. The following is a list of response times (in minutes) for both of the fire
stations (this data will be used for several problems). Both samples may be regarded
as simple random samples from approximately normal populations so that the t-
procedures are safe to use.
Northern: 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 8, 8, 9, 9, 10, 10, 10, 10,
12
Sum = 192
Sum of Squared Deviations = 197.2
Southern: 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 7, 7, 8, 8, 8, 8, 8, 8, 9, 10, 10, 10, 12, 12, 12,
12, 13
Sum = 225
Sum of Squared Deviations = 231.5
Find and interpret a 95% confidence interval for the mean response time of the fire station that
responds to calls in the northern part of town. Fill in blank 1 to report the bounds of the 95% Cl.
Enter your answers as lower bound,upper bound with no additional spaces and rounding bounds
to two decimals.
Blank #1: 95% confident that the true mean response time of the fire station in the
northern part of town is between
and
_minutes.
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