g) determine the point estimate of the population mean h) determine the margin of error for the 96% confidence interval i) specify the confidence interval g) give a brief interpretation of the confidence interval as related to ER wait times at the local hostpital The administrator at your local hospital states that on weekends the average wait time for emergency room visits is10 minutes. Based on discussions you have had with friends who have complained on how long they waited to beseen in the ER over a weekend, you dispute the administrator's claim. Over the course of a few weekends, yourecord the wait time for 40 randomly selected patients. The average wait time for these 40 patients is 11 minuteswith a standard deviation of 3 minutes. Do you have enough evidence to support your hypothesis that the averageER wait time exceeds 10 minutes? You opt to conduct the test at a 5% level of significance.

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Description: g) determine the point estimate of the population mean h) determine the margin of error for the 96% confidence interval i) specify the confidence interval g) give a brief interpretation of the confidence interval as related to ER wait times at the lo

Given that, Sample size Sample standard deviation s=3

Answered: g) determine the point estimate of 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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g) determine the point estimate of the population mean

h) determine the margin of error for the 96% confidence interval

i) specify the confidence interval
g) give a brief interpretation of the confidence interval as related to ER wait times at the local hostpital

The administrator at your local hospital states that on weekends the average wait time for emergency room visits is
10 minutes. Based on discussions you have had with friends who have complained on how long they waited to be
seen in the ER over a weekend, you dispute the administrator's claim. Over the course of a few weekends, you
record the wait time for 40 randomly selected patients. The average wait time for these 40 patients is 11 minutes
with a standard deviation of 3 minutes. Do you have enough evidence to support your hypothesis that the average
ER wait time exceeds 10 minutes? You opt to conduct the test at a 5% level of significance.

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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