The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. Assume the population is normally distributed. (a) Find the sample mean. x= X= (Round to one decimal place as needed.) (b) Find the sample standard deviation. S= (Round to one decimal place as needed.) (c) Construct a 99% confidence interval for the population mean μ. A 99% confidence interval for the population mean is (). (Round to one decimal place as needed.) (...) 1424 694 729 625 1225 725 742 1449 984 835 548 943

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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The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c)
below.
Assume the population is normally distributed.
(a) Find the sample mean.
x= (Round to one decimal place as needed.)
(b) Find the sample standard deviation.
s = (Round to one decimal place as needed.)
(c) Construct a 99% confidence interval for the population mean μ.
A 99% confidence interval for the population mean is (.).
(Round to one decimal place as needed.)
C
1424
694
729
625
1225
725
742
1449
984
835
548
943
T
Transcribed Image Text:The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. Assume the population is normally distributed. (a) Find the sample mean. x= (Round to one decimal place as needed.) (b) Find the sample standard deviation. s = (Round to one decimal place as needed.) (c) Construct a 99% confidence interval for the population mean μ. A 99% confidence interval for the population mean is (.). (Round to one decimal place as needed.) C 1424 694 729 625 1225 725 742 1449 984 835 548 943 T
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