Final Finalquestion 1A sports shop records the sales of items made in China and those made in America.Country of OriginNMeanStd. DeviationChina5022.59.75America3333.1511.6a) What is the SE Mean for the sales from China? b) Calculate a 95% confidence interval for the mean sales amount made in America

Name: Final Finalquestion 1A sports shop records the sales of items made in
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Description: Final Finalquestion 1A sports shop records the sales of items made in China and those made in America.Country of OriginNMeanStd. DeviationChina5022.59.75America3333.1511.6a) What is the SE Mean for the sales from China? b) Calculate a 95% confidence

Given data, Country of Origin N Mean Std. Deviation China 50 22.5 9.75 America 33 33.15 11.6…

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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

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ISBN:9780079039897

Author:Carter

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A sports shop records the sales of items made in China and those made in America.

Country of Origin	N	Mean	Std. Deviation
China	50	22.5	9.75
America	33	33.15	11.6

a) What is the SE Mean for the sales from China?
b) Calculate a 95% confidence interval for the mean sales amount made in America

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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