Please answer questions ( iv , v, vi) for question iv the options are a. sample variance, b. sample proportion c. sample mean) iv. Point estimate: Select an answer|(Round the answer to 3 decimal places)v. Confidence level% and a =alsoand 1%3D2o Critical values: (Round the answer to 3 decimal places)left-right=vi. Margin of error (if applicable):(Round the answer to 3 decimal places)vii. Lower bound:(Round the answer to 3 decimal places)viii. Upper bound:(Round the answer to 3 decimal places)ix. Confidence interval:(x. Interpretation: We are% confident that the true population variance is betweenandBased on the confidence interval, is it reasonable to believe that the population variance is less than 0.02?Explain.?because Select an answer0.02. The proper operation of typical home appliances requires voltage levels that do not vary much. Listedbelow are 23 voltage levels (in volts) at a random house on 23 different days.119.9120.1120120.1120.2119.8120119.9120.1119.9120.1120.1119.7120120.3119.9119.6120.1119.9120.1120.1120.3120The mean of the data set is 120; the sample standard deviation is 0.17; if the normality plot is not providedyou may assume that the voltages are normally distributed.Construct a 90% confidence interval for the variance (standard deviation) of all voltages in the house.i. Procedure: One mean T procedureii. Assumptions: (select everything that applies)O Population standard deviation is unknownO Population standard deviation is knownO The number of positive and negative responses are both greater than 10O Normal population

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Description: Please answer questions ( iv , v, vi) for question iv the options are a. sample variance, b. sample proportion c. sample mean) iv. Point estimate: Select an answer|(Round the answer to 3 decimal places)v. Confidence level% and a =alsoand 1%3D2o Criti

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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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Please answer questions ( iv , v, vi)

for question iv the options are a. sample variance, b. sample proportion c. sample mean)

iv. Point estimate: Select an answer
|(Round the answer to 3 decimal places)
v. Confidence level
% and a =
also
and 1
%3D
2
o Critical values: (Round the answer to 3 decimal places)
left-
right=
vi. Margin of error (if applicable):
(Round the answer to 3 decimal places)
vii. Lower bound:
(Round the answer to 3 decimal places)
viii. Upper bound:
(Round the answer to 3 decimal places)
ix. Confidence interval:(
x. Interpretation: We are
% confident that the true population variance is between
and
Based on the confidence interval, is it reasonable to believe that the population variance is less than 0.02?
Explain.
?
because Select an answer
0.02.

The proper operation of typical home appliances requires voltage levels that do not vary much. Listed
below are 23 voltage levels (in volts) at a random house on 23 different days.
119.9
120.1
120
120.1
120.2
119.8
120
119.9
120.1
119.9
120.1
120.1
119.7
120
120.3
119.9
119.6
120.1
119.9
120.1
120.1
120.3
120
The mean of the data set is 120; the sample standard deviation is 0.17; if the normality plot is not provided
you may assume that the voltages are normally distributed.
Construct a 90% confidence interval for the variance (standard deviation) of all voltages in the house.
i. Procedure: One mean T procedure
ii. Assumptions: (select everything that applies)
O Population standard deviation is unknown
O Population standard deviation is known
O The number of positive and negative responses are both greater than 10
O Normal population

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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