The duration of time from first exposure to HIV infection to AIDS diagnosis is called the incubation period. The incubation periods of 7 HIV infected individuals is given below (in years): 12.0 10.5 9.5 6.3 13.5 12.5 7.2 a. Calculate the sample mean - show your details. b. Calculate the sample median. show details c. Calculate the sample standard deviation, show details
The duration of time from first exposure to HIV infection to AIDS diagnosis is called the incubation period. The incubation periods of 7 HIV infected individuals is given below (in years): 12.0 10.5 9.5 6.3 13.5 12.5 7.2 a. Calculate the sample mean - show your details. b. Calculate the sample median. show details c. Calculate the sample standard deviation, show details
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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Transcribed Image Text:QUESTION 2
Assume blood-glucose levels in a population of adult women are normally distributed with mean 90 mg/dL and standard deviation 38 mg/dL.
a. Suppose the "abnormal range" were defined to be glucose levels outside of 1 standard deviation of the mean (i.e., either at least 1 standard deviation
above the mean, or at least 1 standard deviation below mean). Individuals with abnormal levels will be retested. What percentage of individuals would be
called "abnormal" and need to be retested? What is the normal range of glucose levels in units of mg/dL?
b. Suppose the abnormal range were defined to be glucose levels outside of 2 standard deviations of the mean. What percentage of individuals would now be
called "abnormal? What is the normal range of glucose levels (mg/dL)?
c. In this new study the experimental group, receiving a high carb diet ha a mean of 133 mg/dL glusose. at a aphal of 5%, is there a diference between the
control population and the experimental sample
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Transcribed Image Text:QUESTION 1
The duration of time from first exposure to HIV infection to AIDS diagnosis is called the incubation period. The incubation periods of 7 HIV infected individuals
is given below (in years):
12.0 10.5 9.5 6.3 13.5 12.5 7.2
a. Calculate the sample mean - show your details.
b. Calculate the sample median. show details
c. Calculate the sample standard deviation, show details
d. If the number 6.3 above were changed to 1.5, what would happen to the sample mean, median, and standard deviation? State whether each would
increase, decrease, or remain the same.
e. The Individuals where recruited at the "free mobile women's hospital", who serves undeserved women, individuals where payed 1500 $ for participating.
Explain why is smaple may not be representative of the general population.
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