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Eddi Din [679]
3 years ago
5

78+24-11+56+23-117+1

Mathematics
1 answer:
kakasveta [241]3 years ago
4 0
78+24+11+56+23+117+1 =310
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An urn contains a very large number of marbles of four different colors: red, orange, yellow, and green. A sample of 12 marbles d
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Answer:

We  can reject the hypothesis at the 0.05 significance level.

 

Step-by-step explanation:

given that an urn contains  a very large number of marbles of four different colors: red, orange, yellow, and green. A sample of 12 marbles drawn at random from the urn revealed 2 red, 5 orange, 4 yellow, and 1 green marble.

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Ha: atleast two colours are not equally likely

(Two tailed chi square test at 5% significance level)

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Observed  O         2                     5                  4           1              12    

Expected   E         3                     3                   3          3              12

(O-E)^2/E             0.3333            5.3333        0.3333  5.3333     11.3333

chi square = 11.3333

df =3

p value = 0.010055

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We  can reject the hypothesis at the 0.05 significance level.

 

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Forty two point six tenth three hundredth eight thousandth

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