The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution. 1,2711,1801,1871,2431,2681,3161,2751,3171,275 (a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round your answers to four decimal places.) x = A.D.s = yr (b) Find a 90% confidence interval for the mean of all tree ring dates from this archaeological site. (Round your answers to the nearest whole number.) lower limit A.D.upper limit A.D.
The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution. 1,2711,1801,1871,2431,2681,3161,2751,3171,275 (a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round your answers to four decimal places.) x = A.D.s = yr (b) Find a 90% confidence interval for the mean of all tree ring dates from this archaeological site. (Round your answers to the nearest whole number.) lower limit A.D.upper limit A.D.
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Transcribed Image Text:The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the
population of x values has an approximately normal distribution.
1,2711,1801,1871,2431,2681,3161,2751,3171,275
(a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation
s. (Round your answers to four decimal places.)
x = A.D.s = yr
(b) Find a 90% confidence interval for the mean of all tree ring dates from this archaeological site. (Round your answers to
the nearest whole number.)
lower limit A.D.upper limit A.D.
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