A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a0.01significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 7893457250356673785876821039876 Question content area bottomPart 1Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? A.H0:μ=60secondsH1:μ>60seconds B.H0:μ=60secondsH1:μ≠60secondsYour answer is correct. C.H0:μ=60secondsH1:μ<60seconds D.H0:μ≠60secondsH1:μ=60secondsPart 2Determine the test statistic.

Given data is78,93,45,72,50,35,66,73,78,58,76,82,103,98,76sample size(n)=15significance…

Answered: A group of students estimated the…

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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Question content area bottom

Part 1

Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?

H0:

μ=60

seconds

H1:

μ>60

seconds

H0:

μ=60

seconds

H1:

μ≠60

seconds

Your answer is correct.

H0:

μ=60

seconds

H1:

μ<60

seconds

H0:

μ≠60

seconds

H1:

μ=60

seconds

Part 2

Determine the test statistic.

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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