A random sample of 14 items is drawn from a population whose standard deviation is unknown. The sample mean is x= 780 the x has a line on top and the sample standard deviation is s = 5. Use appendix d to find the values of students t.a. Construct an interval estimate of u with 98% confidence. Round to 3 decimal places.98%interval is from____to____b. Construct an interval estimate of you with 98% confidence, assuming that s =. 10 (round to 3 decimal places)98% confidence interval is from ____to____c. Construct an interval estimate of you with 98% confidence, assuming that s = 20 (round your answers to three decimal places.)98% confidence interval is from____to____ A random sample of 14 items is drawn from a population whose standard devlation Is unknown. The sample mean Is =780 and thesample standard devlation is s= 5. Use Appendix D to find the values of Student's t.(a) Construct an Interval estimate of u with 98% confidence. (Round your answers to 3 decimal places.)The 98% confidence interval is fromto(b) Construct an Interval estimate of u with 98% confidence, assuming that s = 10. (Round your answers to 3 decimal places.)The 98% confidence interval is fromto(c) Construct an Interval estimate of u with 98% confidence, assuming thats= 20. (Round your answers to 3 declmal places.)The 98% confidence interval is fromto

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A random sample of 14 items is drawn from a population whose standard deviation is unknown. The sample mean is x= 780 the x has a line on top and the sample standard deviation is s = 5. Use appendix d to find the values of students t.

a. Construct an interval estimate of u with 98% confidence. Round to 3 decimal places.

98%interval is from____to____

b. Construct an interval estimate of you with 98% confidence, assuming that s =. 10 (round to 3 decimal places)

98% confidence interval is from ____to____

c. Construct an interval estimate of you with 98% confidence, assuming that s = 20 (round your answers to three decimal places.)

98% confidence interval is from____to____

A random sample of 14 items is drawn from a population whose standard devlation Is unknown. The sample mean Is =780 and the
sample standard devlation is s= 5. Use Appendix D to find the values of Student's t.
(a) Construct an Interval estimate of u with 98% confidence. (Round your answers to 3 decimal places.)
The 98% confidence interval is from
to
(b) Construct an Interval estimate of u with 98% confidence, assuming that s = 10. (Round your answers to 3 decimal places.)
The 98% confidence interval is from
to
(c) Construct an Interval estimate of u with 98% confidence, assuming thats= 20. (Round your answers to 3 declmal places.)
The 98% confidence interval is from
to

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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