Question
In: Math
A simple random sample of 60 items from a population of with α=8 resulted in a...
A simple random sample of 60 items from a population of with α=8 resulted in a sample mean of 35.
A. Provide a 90% confidence interval for the population mean.
B. Provide a 95% confidence interval for the population mean.
C. Provide a 99% confidence interval for the population mean.
Round to 2 decimal places if necessary.
Solutions
milcah answered 1 year agoRelated Solutions
simple random sample of 80 items from a population with = 8 resulted in a sample...
simple random sample of 80 items from a population with = 8
resulted in a sample mean of 38. If required, round your answers to
two decimal places. a. Provide a 90% confidence interval for the
population mean. to b. Provide a 95% confidence interval for the
population mean. to c. Provide a 99% confidence interval for the
population mean. to
A simple random sample of 60 items from a population with σ = 7 resulted in...
A simple random sample of 60 items from a population with σ = 7
resulted in a sample mean of 38.
If required, round your answers to two decimal places.
a. Provide a 90% confidence interval for the
population mean.
_____ to _____
b. Provide a 95% confidence interval for the
population mean.
_____ to _____
c. Provide a 99% confidence interval for the
population mean.
_____ to _____
A simple random sample of 50 items from a population with σ = 8 resulted in...
A simple random sample of 50 items from a population with
σ = 8
resulted in a sample mean of 38. (Round your answers to two
decimal places.)
(a)
Provide a 90% confidence interval for the population mean.
to
(b)
Provide a 95% confidence interval for the population mean.
to
(c)
Provide a 99% confidence interval for the population mean.
to
A simple random sample of 70 items resulted in a sample mean of 60. The population...
A simple random sample of 70 items resulted in a sample mean of
60. The population standard deviation is σ = 15.
(a) Compute the 95% confidence interval for the population mean.
(Round your answers to two decimal places.)
_________ to _________
(b) Assume that the same sample mean was obtained from a sample
of 140 items. Provide a 95% confidence interval for the population
mean. (Round your answers to two decimal places.)
_________ to _________
(c) What is the...
A simple random sample of 60 items resulted in a sample mean of 80. The population...
A simple random sample of 60 items resulted in a sample mean of
80. The population standard deviation is
σ = 5.
(a)
Compute the 95% confidence interval for the population mean.
(Round your answers to two decimal places.)
to
(b)
Assume that the same sample mean was obtained from a sample of
120 items. Provide a 95% confidence interval for the population
mean. (Round your answers to two decimal places.)
to
A simple random sample of 60 items resulted in a sample mean of 80. The population...
A simple random sample of 60 items resulted in a sample mean of
80. The population standard deviation is
σ = 5.
(a)
Compute the 95% confidence interval for the population mean.
(Round your answers to two decimal places.)
to
(b)
Assume that the same sample mean was obtained from a sample of
120 items. Provide a 95% confidence interval for the population
mean. (Round your answers to two decimal places.)
to
A simple random sample of 60 items resulted in a sample mean of 65. The population...
A simple random sample of 60 items resulted in a sample mean of
65. The population standard deviation is 16. a. Compute the 95%
confidence interval for the population mean (to 1 decimal). ( , )
b. Assume that the same sample mean was obtained from a sample of
120 items. Provide a 95% confidence interval for the population
mean (to 2 decimals). ( , ) c. What is the effect of a larger
sample size on the margin of...
A simple random sample of 60 items resulted in a sample mean of 65. The population...
A simple random sample of 60 items resulted in a sample mean of
65. The population standard deviation is 16. a. Compute the 95%
confidence interval for the population mean (to 1 decimal). ( , )
b. Assume that the same sample mean was obtained from a sample of
120 items. Provide a 95% confidence interval for the population
mean (to 2 decimals). ( , ) c. What is the effect of a larger
sample size on the margin of...
A simple random sample of 60 items resulted in a sample mean of 95. The population...
A simple random sample of 60 items resulted in a sample mean of
95. The population standard deviation is 13.
a. Compute the 95% confidence interval for the population mean
(to 1 decimal).
( , )
b. Assume that the same sample mean was obtained from a sample
of 120 items. Provide a 95% confidence interval for the population
mean (to 2 decimals).
( , )
c. What is the effect of a larger sample size on the margin of
error?
SelectIt increasesIt decreasesIt...
A simple random sample of 60 items resulted in a sample mean of 10. The population...
A simple random sample of 60 items resulted in a sample mean of
10. The population standard deviation is 20.
Compute the 95% confidence interval for the population mean.
Round to 1 decimal place.
Assume that the same sample mean was obtained from a sample of
120 items. Provide a 95% confidence interval for the population
mean. Round to 2 decimal places.
What is the effect of a larger sample size on the interval
estimate? Larger sample provides a larger...
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