Nationwide, the amount charged by doctors for performing a particular minor surgical procedure has standard deviation (σ) of $300. The local hospital gives an estimate of $1220 for the surgery. We wish to test whether the hospital has given us an overestimate of the bill. To do so, we randomly select 160 bills from the population of all bills charged for this surgery. Let x represent the average amount charged for these 160 surgical procedures. We find that x = $1180. Carry out the hypothesis test, stating null and alternative hypotheses, drawing picture, finding the p-value and stating conclusion.
Nationwide, the amount charged by doctors for performing a particular minor surgical procedure has standard deviation (σ) of $300. The local hospital gives an estimate of $1220 for the surgery. We wish to test whether the hospital has given us an overestimate of the bill. To do so, we randomly select 160 bills from the population of all bills charged for this surgery. Let x represent the average amount charged for these 160 surgical procedures. We find that x = $1180. Carry out the hypothesis test, stating null and alternative hypotheses, drawing picture, finding the p-value and stating conclusion.
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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Nationwide, the amount charged by doctors for performing a particular minor surgical procedure has standard deviation (σ) of $300. The local hospital gives an estimate of $1220 for the surgery. We wish to test whether the hospital has given us an overestimate of the bill. To do so, we randomly select 160 bills from the population of all bills charged for this surgery. Let x represent the average amount charged for these 160 surgical procedures. We find that x = $1180.
Carry out the hypothesis test, stating null and alternative hypotheses, drawing picture, finding the p-value and stating conclusion.
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