How long is your commute to school? Random sample 16 students, the mean commute time was 33 minutes. Answer the questions below to construct a 90% confidence interval about the population mean he scandaru deviation för thesample was 10 minutes. Answer the questions below to construct a 90% confidenceinterval about the population mean, u. Assume that student commute times are ncmally distributed.(a) What are the values for the following variables?• T=S%3=• (degrees of freedom) df =(b) What is the critical value, Te corresponding to a 90% confidence level?(c) Compute the margin oferror,Te(d) Write out a 90% confidence interval about u.(e) Fill in the blanks to interpret the confidence interval.We are% confident thatlies betweenand近

We have given that Sample size n= 16 Sample mean = 33 Standard deviation = 10

Answered: eviation for the sample was 10 minutes.…

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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How long is your commute to school? Random sample 16 students, the mean commute time was 33 minutes. Answer the questions below to construct a 90% confidence interval about the population mean

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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