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Assuming that nothing is known about the shape of the distribution for the data, what percentage of den- tists use less than 102 units of local anesthetics per week? Assuming that the data have a mound-shaped distribu- tion, what percentage of dentists use less than 102 units of local anesthetics per week?

Assuming that nothing is known about the shape of the distribution for the data, what percentage of den- tists use less than 102 units of local anesthetics per week? Assuming that the data have a mound-shaped distribu- tion, what percentage of dentists use less than 102 units of local anesthetics per week?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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I need help for figuring out how to explain parts a and b.

2.103 Dentists' use of anesthetics. A study published in Current Allergy & Clinical Immunology (Mar. 2004) investigated al- lergic reactions of dental patients to local anesthetics. Based on a survey of dental practitioners, the study reported that the mean number of units (ampoules) of local anesthetics used per week by dentists was 79, with a standard deviation of 23. Suppose we want to determine the percentage of den- tists who use less than 102 units of local anesthetics per week.
Transcribed Image Text:2.103 Dentists' use of anesthetics. A study published in Current Allergy & Clinical Immunology (Mar. 2004) investigated al- lergic reactions of dental patients to local anesthetics. Based on a survey of dental practitioners, the study reported that the mean number of units (ampoules) of local anesthetics used per week by dentists was 79, with a standard deviation of 23. Suppose we want to determine the percentage of den- tists who use less than 102 units of local anesthetics per week.
a. Assuming that nothing is known about the shape of the distribution for the data, what percentage of den- tists use less than 102 units of local anesthetics per week? b. Assuming that the data have a mound-shaped distribu- tion, what percentage of dentists use less than 102 units of local anesthetics per week?
Transcribed Image Text:a. Assuming that nothing is known about the shape of the distribution for the data, what percentage of den- tists use less than 102 units of local anesthetics per week? b. Assuming that the data have a mound-shaped distribu- tion, what percentage of dentists use less than 102 units of local anesthetics per week?
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