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For Numbers 12 and 13: A particular concentration of a chemical in polluted water has been found to be lethal to 20% of the fish that are exposed to the concentration for 24 hours. To further study this, twenty tanks containing five fish each with this concentration of chemical in water were prepared, and the number of dead fish after 24 hours was recorded. At alpha-5%, verify if the data fits a binomial distribution with p=0.2 Number of dead fish 0 Observed (O) 1 2 3 4 5 2 3 1 8 5 1 2. Under the hypothesized probability distribution, the expected frequency of one dead fish is A. 1.000 B. 2.048 C. 4.000 D. 8.192

For Numbers 12 and 13: A particular concentration of a chemical in polluted water has been found to be lethal to 20% of the fish that are exposed to the concentration for 24 hours. To further study this, twenty tanks containing five fish each with this concentration of chemical in water were prepared, and the number of dead fish after 24 hours was recorded. At alpha-5%, verify if the data fits a binomial distribution with p=0.2 Number of dead fish 0 Observed (O) 1 2 3 4 5 2 3 1 8 5 1 2. Under the hypothesized probability distribution, the expected frequency of one dead fish is A. 1.000 B. 2.048 C. 4.000 D. 8.192

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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For Numbers 12 and 13: A particular concentration of a chemical in polluted water has been found to be lethal to 20% of the fish that are exposed to the concentration for 24 hours. To further study this, twenty tanks containing five fish each with this concentration of chemical in water were prepared, and the number of dead fish after 24 hours was recorded. At alpha-5%, verify if the data fits a binomial distribution with p=0.2 Number of dead fish 0 1 Observed (O) 1 12. Under the hypothesized probability distribution, the expected frequency of one dead fish is A. 1.000 B. 2.048 A. reject; sufficient B. reject; no sufficient 2 3 data: 0 X-squared C. 4.000 3 4 1 8 13. Refer to the statistical output below. At 5% level of significance, we Ho. There is that the number of dead fishes does not follow the binomial distribution with p=0.2 Chi-squared test for given probabilities D. 8.192 = 4390.1, df = 5, p-value < 2.2e-16 | C. fail to reject; sufficient D. fail to reject; no sufficient evidence
Transcribed Image Text:For Numbers 12 and 13: A particular concentration of a chemical in polluted water has been found to be lethal to 20% of the fish that are exposed to the concentration for 24 hours. To further study this, twenty tanks containing five fish each with this concentration of chemical in water were prepared, and the number of dead fish after 24 hours was recorded. At alpha-5%, verify if the data fits a binomial distribution with p=0.2 Number of dead fish 0 1 Observed (O) 1 12. Under the hypothesized probability distribution, the expected frequency of one dead fish is A. 1.000 B. 2.048 A. reject; sufficient B. reject; no sufficient 2 3 data: 0 X-squared C. 4.000 3 4 1 8 13. Refer to the statistical output below. At 5% level of significance, we Ho. There is that the number of dead fishes does not follow the binomial distribution with p=0.2 Chi-squared test for given probabilities D. 8.192 = 4390.1, df = 5, p-value < 2.2e-16 | C. fail to reject; sufficient D. fail to reject; no sufficient evidence
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