b) The following data shows the number of hours slept by a patient in 1 weeks 12 18 09 16 11 10 08 Calculate the unbiased estimate for the population mean Calculate the unbiased estimate for the population standard deviationCalculate a 95% confidence interval for the mean number of hours

The following data shows the number of hours slept by a patient in 1 weeks 12 , 18 , 09, 16 ,…

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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b) The following data shows the number of hours slept by a patient in 1 weeks

12 18 09 16 11 10 08

Calculate the unbiased estimate for the population mean
Calculate the unbiased estimate for the population standard deviation
Calculate a 95% confidence interval for the mean number of hours

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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