Question
In: Statistics and Probability
Determine the standard deviation of the following prices of selected digital cameras: $158 , $95 ,...
Determine the standard deviation of the following prices of selected digital cameras: $158 , $95 , $175 , $180 , $95, $129, $228, $300 Round off your answer to 2 decimal places. Give the units as well.
Solutions
Expert Solution
Solution-
Standard deviation of prices of selected digital cameras -
69.14
- Calculations-
orchestra answered 2 years agoRelated Solutions
A consumer product magazine recently ran a story concerning the increasing prices of digital cameras. The...
A consumer product magazine recently ran a story concerning the
increasing prices of digital cameras. The story stated that digital
camera prices dipped a couple of years ago, but now are beginning
to increase in price because of added features. According to the
story, the average price of all digital cameras a couple of years
ago was $215.00. A random sample of n = 200 cameras was recently
taken and entered into a spreadsheet. It was desired to test to...
Determine the mean and standard deviation of your sample. Find the 80%, 95%, and 99% confidence...
Determine the mean and standard deviation of your sample. Find
the 80%, 95%, and 99% confidence intervals. Make sure to list the
margin of error for the 80%, 95%, and 99% confidence interval.
Create your own confidence interval (you cannot use 80%, 95%, and
99%) and make sure to show your work. Make sure to list the margin
of error. What trend do you see takes place to the confidence
interval as the confidence level rises? Explain mathematically why
that...
Determine the mean and standard deviation of your sample. Find the 80%, 95%, and 99% confidence...
Determine the mean and standard deviation of your sample.
Find the 80%, 95%, and 99% confidence intervals.
Make sure to list the margin of error for the 80%, 95%, and 99%
confidence interval.
Create your own confidence interval (you cannot use 80%, 95%,
and 99%) and make sure to show your work. Make sure to list the
margin of error.
Problem Analysis—Write a half-page reflection.
What trend do you see takes place to the confidence interval as
the confidence level...
Determine the mean and standard deviation of your sample. Find the 80%, 95%, and 99% confidence...
Determine the mean and standard deviation of your sample.
Find the 80%, 95%, and 99% confidence intervals. Make sure to
list the margin of error for the 80%, 95%, and 99% confidence
interval.
Create your own confidence interval (you cannot use 80%, 95%,
and 99%) and make sure to show your work.
Make sure to list the margin of error.
What trend do you see takes place to the confidence interval as
the confidence level rises?
Explain mathematically why that...
. It is desired to design 95 confidence intervals for the ratio between standard deviation of...
. It is desired to design 95 confidence intervals for the
ratio between standard deviation of two electroplating lines in a
micro-electro-mechanical system (MEMS) company. If independent
samples of size n1=10 from line-1 has a standard deviation of
S1=0.035 mil and sample size of n2=12 from line-2 has a standard
deviation of s2=0.062 mil, estimate the confidence intervals for
the ratio of standard deviation of line-1 to line-2 (s12/s22)
The economy of Tuland produces only two products apples and digital cameras. The following information is...
The economy of Tuland produces only two products
apples
and
digital cameras.
The following information is available for production and prices
of Tuland's products for the years 2009 and 2010.
2009
2010
Quantity of apples
10
11
Quantity of digital cameras
20
30
Price of apples
$5.00
$6.00
Price of digital cameras
$50.00
$30.00
Using above information, calculate the following values.
Real GDP for 2009 using 2009 as base year equals
$nothing.
(Enter your response rounded to two decimal places.)...
Apply the 68-95-99.7 Rule to a mean of 67.9498 and standard deviation 1.94
Apply the 68-95-99.7 Rule to a mean of 67.9498 and standard
deviation 1.94
3.For a 95% confidence level, with a standard deviation equal to 25 and a sampling error...
3.For a 95% confidence level, with a standard deviation equal to
25 and a sampling error of 5, calculate the sample size
a.99.96
b.61.47
c.96.04
d.75.00
Construct a 95% confidence interval for the population standard deviation of a random sample of 15...
Construct a 95% confidence interval for the population standard
deviation of a random sample of 15 crates which have a mean weight
of 165.2 points and a standard deviation of 12.9 pounds. Assume the
population is normallyn distributed.
A. 9.9, 18.8
B. 9.4, 20.3
Please show work.
Construct a 95% confidence interval for the standard deviation for both companies. Interpret and compare the...
Construct a 95% confidence interval for the standard
deviation for both companies. Interpret and compare the
results. Company 1: S=1.38, n=36, mean=11.42. Company 2: S=55.27,
n=36, mean=282.86
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