A quality control specialist tests samples of the seed being packaged and uses a chi-square goodness-of-fit test to see whether the proportions in the samples match what is claimed by the company. Which of the following best describes the null hypothesis and the alternative hypothesis for the test? Họ : p= 0.20 Ha : p+ 0.20 Họ : Pp = 0.20, Pg = 0.20, pBC = 0.20, p1 = 0.20, pNG = 0.20 Ha : At least one of the proportions is different. в Họ : PF = 0.55, Pg = 0.22, PBC = 0.10, pI = 0.07,PNG = 0.06 H : At least one of the proportions is different. Ho : All proportions are equally likely. Ha : All of the proportions are different. Ho : There is no association between the grass-seed types. E Ha : There is an association between the grass-seed types.

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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Which choice is correct?

A company claims that each bag of grass seed that it sells contains the following distribution of grass-seed types.
Type of Grass Seed
Percent
Fescue (F)
55%
Buffalo grass (B)
22%
Blue grama (BG)
10%
Indian grass (1)
7%
Green needlegrass (NG)
6%
A quality control specialist tests samples of the seed being packaged and uses a chi-square goodness-of-fit test to
see whether the proportions in the samples match what is claimed by the company. Which of the following best
describes the null hypothesis and the alternative hypothesis for the test?
Họ : p= 0.20
Ha : p+ 0.20
A
Họ : Pp = 0.20, Pg = 0.20, PBC = 0.20, p; = 0.20, PNG = 0.20
Hạ : At least one of the proportions is different.
Họ : Pp = 0.55, PB = 0.22, PBG = 0.10, pI = 0.07, PNG = 0.06
Ha : At least one of the proportions is different.
Họ : All proportions are equally likely.
Ha : All of the proportions are different.
D
Ho : There is no association between the grass-seed types.
Ha : There is an association between the grass-seed types.
Transcribed Image Text:A company claims that each bag of grass seed that it sells contains the following distribution of grass-seed types. Type of Grass Seed Percent Fescue (F) 55% Buffalo grass (B) 22% Blue grama (BG) 10% Indian grass (1) 7% Green needlegrass (NG) 6% A quality control specialist tests samples of the seed being packaged and uses a chi-square goodness-of-fit test to see whether the proportions in the samples match what is claimed by the company. Which of the following best describes the null hypothesis and the alternative hypothesis for the test? Họ : p= 0.20 Ha : p+ 0.20 A Họ : Pp = 0.20, Pg = 0.20, PBC = 0.20, p; = 0.20, PNG = 0.20 Hạ : At least one of the proportions is different. Họ : Pp = 0.55, PB = 0.22, PBG = 0.10, pI = 0.07, PNG = 0.06 Ha : At least one of the proportions is different. Họ : All proportions are equally likely. Ha : All of the proportions are different. D Ho : There is no association between the grass-seed types. Ha : There is an association between the grass-seed types.
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