2. A sample of size n is taken from the ponulation which has an unknown distribution with mean and standard deviation and is used for the sample mean distribution. For which of the following sample sizes is this valid? A. 2 В. 29 С. 75 D anu of he giuen choices
2. A sample of size n is taken from the ponulation which has an unknown distribution with mean and standard deviation and is used for the sample mean distribution. For which of the following sample sizes is this valid? A. 2 В. 29 С. 75 D anu of he giuen choices
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
II. 2 3 4
Transcribed Image Text:M
2. A sample of size n is taken from the population which has an unknown distribution
with mean and standard deviation and is used for the sample mean distribution.
For which of the following sample sizes is this valid?
Jars on an
A. 2
С. 75
D. any of the given choices
В. 29
- 3. Samples size of 36 are selected from the population with mean 29 and standard
deviation of 12. The value of the standard error is
e population is
A. 2
C. 8
В. 4
D. 12
dual
4. Consider a normal population mean of 82 and population standard deviation of 7.3.
Calculate the z-score for X = 85 and n = 36.
%3D
ppropriate
А. 2.19
В. 2.47
C. -2.19
D. 2.47
For questions 5-8. In a certain barangay, Local Government Unit (LGU) distributes "ayuda"
benefits to each family with a mean of 3,200 pesos per month with a standard deviation of 850
pesos. A random sample of 32 families are taken, what is the probability that the average "ayuda"
benefits distributed is between 3,000 and 3,500 pesos?
district.
selected
5. What is the value of the mean of the sample means?
eans are
С. 3,200
D. 3,500
A. 850
aple means.
В. 3,000
cror of the
6. What is the value of the standard deviation of the sampled population?
A. 150
В. 850
C. 1,000
D. 1,200
mal when
7. Which of the following probability notations represents the z-scores, if the average
ayuda benefits distributed is between 3,000 and 3,500?
A. P(3,000<z< 3, 500)
B. P(3,000>z>3, 500)
C. P( -1.33 <z<2)
D. P(-1.33 >z>2)
deviation
8. What is the probability that the average ayuda benefits distributed is between 3,000
and 3,500?
C. 90.82%
A.. 9.18%
D. 96.33%
B. 88.55%
Chapter Three Sampling and Sampling Distributions 85
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