Assume a population of 4, 5, and 9. Assume that samples of size n = 2 are randomly selected with replacement from the population. Listed below are the nine different samples. Complete parts a through d below. 4,5 4,9 5,4 5,5 5,9 9,4 9,5 9,9 4,4 a. Find the value of the population standard deviation o. G= 2.160 (Round to three decimal places as needed.) b. Find the standard deviation of each of the nine samples, then summarize the sampling distribution of the standard deviations in the format of a table representing the probability distribution of the distinct standard deviation values. Use ascending order of the sample standard deviations. 11 12 13 Probability 14 15

Assume a population of 4, 5, and 9. Assume that samples of size n = 2 are randomly selected with replacement from the population. Listed below are the nine different samples. Complete parts a through d below. 4,5 4,9 5,4 5,5 5,9 9,4 9,5 9,9 4,4 a. Find the value of the population standard deviation o. G= 2.160 (Round to three decimal places as needed.) b. Find the standard deviation of each of the nine samples, then summarize the sampling distribution of the standard deviations in the format of a table representing the probability distribution of the distinct standard deviation values. Use ascending order of the sample standard deviations. 11 12 13 Probability 14 15

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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A 6.3.8
Assume a population of 4, 5, and 9. Assume that samples of size n = 2 are randomly selected with replacement from the population. Listed
below are the nine different samples. Complete parts a through d below.
4,5
4,9
5,4
5,5
5,9
9,4
9,5
9,9
4,4
a. Find the value of the population standard deviation o.
G= 2.160
(Round to three decimal places as needed.)
9
10
b. Find the standard deviation of each of the nine samples, then summarize the sampling distribution of the standard deviations in the
format of a table representing the probability distribution of the distinct standard deviation values. Use ascending order of the sample
standard deviations.
11
12
13
Probability
14
15
16
17
18
19
(Type integers or fractions.)
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
Enter your answer in the edit fields and then click Check Answer.
40
41
2 parts
remaining
Clear All
Check Answer
Edit
P Type here to search
(25)
Esc
4x
41
2
3
Tab
W

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Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna). (Reference: Hummingbirds, K. Long, W. Alther.) Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and σ = 0.64 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is μ = 4.30 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.30 grams? Use ? = 0.10. (a) What is the level of significance? (Enter a number.) State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? H0: μ = 4.3 g; H1: μ > 4.3 g; right-tailed H0: μ < 4.3 g; H1: μ = 4.3 g; left-tailed…
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