Question
In: Statistics and Probability
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these batteries follows the normal probability distribution with a mean of 36 hours and a standard deviation of 5.5 hours. As a part of its quality assurance program, Power +, Inc. tests samples of 9 batteries.
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What can you say about the shape of the distribution of the sample mean?
-
What is the standard error of the distribution of the sample mean? (Round your answer to 4 decimal places.)
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What proportion of the samples will have a mean useful life of more than 38 hours? (Round your z value to 2 decimal places and final answer to 4 decimal places.)
-
What proportion of the sample will have a mean useful life greater than 34.5 hours? (Round your z value to 2 decimal places and final answer to 4 decimal places.)
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What proportion of the sample will have a mean useful life between 34.5 and 38 hours? (Round your z value to 2 decimal places and final answer to 4 decimal places.)
Solutions
Thank you.
orchestra answered 2 years agoRelated Solutions
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows the normal
probability distribution with a mean of 38 hours and a standard
deviation of 5.4 hours. As a part of its quality assurance program,
Power +, Inc. tests samples of 9 batteries. What can you say about
the shape of the distribution of the sample mean? What is the
standard error of the distribution of the sample mean? (Round your
answer...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows the normal
probability distribution with a mean of 37 hours. hours and a
standard deviation of 5.9 hours. As a part of its quality assurance
program, Power +, Inc. tests samples of 9 batteries.
a.
What can you say
about the shape of the distribution of the sample mean?
Sample mean
b.
What is the standard error of the distribution...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows a normal
distribution with a mean of 36 hours and a standard deviation of
5.5 hours. As a part of its quality assurance program, Power +,
Inc. tests samples of 9 batteries.
a.
What can you say about the shape of the distribution of the
sample mean?
Sample mean
(Click to select)NormalUniformBinomial
Round answers to four decimal places.
b.
What...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows a normal
distribution with a mean of 36 hours and a standard deviation of
5.3 hours. As a part of its quality assurance program, Power +,
Inc. tests samples of 9 batteries.
a.
What can you say about the shape of the distribution of the
sample mean?
Sample mean
(Click to
select) Normal Uniform Binomial
Round answers to four decimal places.
b.
What...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows the normal
probability distribution with a mean of 37 hours and a standard
deviation of 5.5 hours. As a part of its quality assurance program,
Power +, Inc. tests samples of 25 batteries.
What can you say about the shape of the distribution of the
sample mean?
What is the standard error of the distribution of the sample
mean? (Round your answer...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows the normal
probability distribution with a mean of 37 hours and a standard
deviation of 5.5 hours. As a part of its quality assurance program,
Power +, Inc. tests samples of 9 batteries
a.What can you say about the shape of the distribution of the
sample mean?
b.What is the standard error of the distribution of the sample
mean? (Round your answer...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows the normal
probability distribution with a mean of 34 hours and a standard
deviation of 5.5 hours. As a part of its quality assurance program,
Power +, Inc. tests samples of 25 batteries.
What can you say about the shape of the distribution of the
sample mean?
What is the standard error of the distribution of the sample
mean? (Round your answer...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows the normal
probability distribution with a mean of 38 hours. hours and a
standard deviation of 5.9 hours. As a part of its quality assurance
program, Power +, Inc. tests samples of 16 batteries.
a.
What can you say about the shape
of the distribution of the sample mean?
Sample mean
(Click to select)NormalUniformBinomial
b.
What is the standard error...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows the normal
probability distribution with a mean of 37 hours. hours and a
standard deviation of 5.5 hours. As a part of its quality assurance
program, Power +, Inc. tests samples of 9 batteries. a. What can
you say about the shape of the distribution of the sample mean? b.
What is the standard error of the distribution of the sample mean?...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these...
Power +, Inc. produces AA batteries used in remote-controlled
toy cars. The mean life of these batteries follows a normal
distribution with a mean of 36 hours and a standard deviation of
5.3 hours. As a part of its quality assurance program, Power +,
Inc. tests samples of 9 batteries. a. What can you say about the
shape of the distribution of the sample mean? Sample mean Round
answers to four decimal places. b. What is the standard error of...
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