omen age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmo Assume that cholesterol levels are normally distributed and d. probability to be 0.0000. e, type of variable and the random variable X in the context cted from each individual is wer variable.
omen age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmo Assume that cholesterol levels are normally distributed and d. probability to be 0.0000. e, type of variable and the random variable X in the context cted from each individual is wer variable.
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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The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmol/l and the standard deviation is 1.0 mmol/l. Assume that cholesterol levels are
Transcribed Image Text:The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmol/l and the
standard deviation is 1.0 mmol/l. Assume that cholesterol levels are normally distributed and a random
sample of 21 women are selected.
It is possible with rounding for a probability to be 0.0000.
a) Identify the individual, variable, type of variable and the random variable X in the context of this
problem.
The individual is
Select an answer
The variable information collected from each individual is
Select an answer
This variable is a Select an answer
The random variable X is as follows:
Select an answer
b) List the givens with the correct symbols.
? 5.1 mmol/l
? = 1 mmol/l
? = 21
variable.
c) Identify the random variable X in the context of this problem.
Select an answer
d) Find the mean of the sampling distribution of the sample mean.
Put the numeric value in the first box and the correct units in the second box.
e) Find the standard deviation of the sampling distribution of the sample mean.
Put the numeric value rounded to two decimal places in the first box and the correct units in the second
box.
Transcribed Image Text:e) Find the standard deviation of the sampling distribution of the sample mean.
Put the numeric value rounded to two decimal places in the first box and the correct units in the second
box.
f) What is the shape of the sampling distribution of the sample mean?
Select an answer
Why? Check all that apply:
population is normal
o is unknown
On is less than 30
population is not normal
On is at least 30
Oo is known
g) Find the probability that the sample mean cholesterol level of the 21 randomly selected women age 45-
59 in Ghana, Nigeria, and Seychelles is less than 4.7 mmol/l.
Round final answer to 4 decimal places.
DO NOT use the rounded standard deviation from part e in this computation.
Use the EXACT value of the standard deviation with the square root.
h) Find the probability that the sample mean cholesterol level of the 21 randomly selected women age 45-
59 in Ghana, Nigeria, and Seychelles is more than 5.54 mmol/l.
Round final answer to 4 decimal places.
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