Please tell me where I should place the star on the horizontal blue line to mark the mean. How should it look like? The first blank is: the center of the 90% confidence interval "(shifts to the right, shifts to the left, or remains the same") The second blank: Compared to the 80%... the 90% confidence interval ("is narrower, is wider, or has the same width") The last blank: "decrease or increase" Suppose the mean of a population is µ = 61. A researcher (who does not know that µ61) selects a random sample of size n from this population.Then he constructs an 80% confidence interval of the population mean.The true population mean and the researcher's 80% confidence interval of the population mean are shown in the following graph. Use the graph toanswer the questions that follow.Sample Mean80% Confidence Intervalof the Population MeanTrue Population Mean5556575859606162636465Use the grey star to mark the mean of the sample. (Be sure to place the star on the horizontal blue line segment that represents the confidence True Population Mean5556575859606162636465Use the grey star to mark the mean of the sample. (Be sure to place the star on the horizontal blue line segment that represents the confidenceinterval.)To construct the confidence interval, the quantity ts M is subtracted from and added to the sample mean.In this case, ts M =Suppose that the researcher uses the same sample but decides to construct a 90% confidence interval of the mean of the population.Compared with the center of the 80% confidence interval, the center of the 90% confidence intervalCompared to the 80%confidence interval, the 90% confidence intervalAt the same confidence level,in the sample size would have a similar effect on the width of the confidence interval as changing theconfidence level from 80% to 90% .

Name: Please tell me where I should place the star on the horizontal blue li
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Description: Please tell me where I should place the star on the horizontal blue line to mark the mean. How should it look like? The first blank is: the center of the 90% confidence interval "(shifts to the right, shifts to the left, or remains the same") The sec

The 80% of confidnce level is ( 56 , 62 ) so , the sample mean is x = 56 + 622 = 59 To…

Answered: True Population Mean 55 56 57 58 59 60…

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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Please tell me where I should place the star on the horizontal blue line to mark the mean. How should it look like?

The first blank is: the center of the 90% confidence interval "(shifts to the right, shifts to the left, or remains the same")

The second blank: Compared to the 80%... the 90% confidence interval ("is narrower, is wider, or has the same width")

The last blank: "decrease or increase"

Suppose the mean of a population is µ = 61. A researcher (who does not know that µ
61) selects a random sample of size n from this population.
Then he constructs an 80% confidence interval of the population mean.
The true population mean and the researcher's 80% confidence interval of the population mean are shown in the following graph. Use the graph to
answer the questions that follow.
Sample Mean
80% Confidence Interval
of the Population Mean
True Population Mean
55
56
57
58
59
60
61
62
63
64
65
Use the grey star to mark the mean of the sample. (Be sure to place the star on the horizontal blue line segment that represents the confidence

True Population Mean
55
56
57
58
59
60
61
62
63
64
65
Use the grey star to mark the mean of the sample. (Be sure to place the star on the horizontal blue line segment that represents the confidence
interval.)
To construct the confidence interval, the quantity ts M is subtracted from and added to the sample mean.
In this case, ts M =
Suppose that the researcher uses the same sample but decides to construct a 90% confidence interval of the mean of the population.
Compared with the center of the 80% confidence interval, the center of the 90% confidence interval
Compared to the 80%
confidence interval, the 90% confidence interval
At the same confidence level,
in the sample size would have a similar effect on the width of the confidence interval as changing the
confidence level from 80% to 90% .

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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