The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.4 parts per million (ppm). A consumer health group measured the level of the chemical in a random sample of tomatoes obtained from one producer. The levels, in ppm, are shown below. 0.31 0.47 0.19 0.72 0.56 0.91 0.29 0.83 0.49 0.28 0.31 0.46 0.25 0.34 0.17 0.58 0.19 0.26 0.47 0.81 Does the data provide sufficient evidence to support the claim that the mean level of the chemical in tomatoes from this producer is greater than the recommended level of 0.4 ppm? Use a 0.05 significance level to test the claim that these sample levels come from a population with a mean greater than 0.4 ppm. Use the P-value method of testing hypotheses. Assume that the standard deviation of levels of the chemical in all such tomatoes is 0.21 ppm. Choose the correct test statistic and P-value associated with this experiment. O Test statistic: z = 0.95 P-value: 0.1711 O Test statistic: z = -0.95 P-value: 0.1711 O Test statistic: z = 0.95 P-value: 0.8289 Test statistic: z = -0.95 P-value: 0.8289
The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.4 parts per million (ppm). A consumer health group measured the level of the chemical in a random sample of tomatoes obtained from one producer. The levels, in ppm, are shown below. 0.31 0.47 0.19 0.72 0.56 0.91 0.29 0.83 0.49 0.28 0.31 0.46 0.25 0.34 0.17 0.58 0.19 0.26 0.47 0.81 Does the data provide sufficient evidence to support the claim that the mean level of the chemical in tomatoes from this producer is greater than the recommended level of 0.4 ppm? Use a 0.05 significance level to test the claim that these sample levels come from a population with a mean greater than 0.4 ppm. Use the P-value method of testing hypotheses. Assume that the standard deviation of levels of the chemical in all such tomatoes is 0.21 ppm. Choose the correct test statistic and P-value associated with this experiment. O Test statistic: z = 0.95 P-value: 0.1711 O Test statistic: z = -0.95 P-value: 0.1711 O Test statistic: z = 0.95 P-value: 0.8289 Test statistic: z = -0.95 P-value: 0.8289
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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Use the data to identify the correct response.
Transcribed Image Text:The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.4 parts per million (ppm). A consumer health group measured the level of the chemical in a random sample of tomatoes obtained from one producer. The levels, in ppm, are shown below:
0.31, 0.47, 0.19, 0.72, 0.56
0.91, 0.29, 0.83, 0.49, 0.28
0.31, 0.46, 0.25, 0.34, 0.17
0.58, 0.19, 0.26, 0.47, 0.81
Does the data provide sufficient evidence to support the claim that the mean level of the chemical in tomatoes from this producer is greater than the recommended level of 0.4 ppm? Use a 0.05 significance level to test the claim that these sample levels come from a population with a mean greater than 0.4 ppm. Use the P-value method of testing hypotheses. Assume that the standard deviation of levels of the chemical in all such tomatoes is 0.21 ppm. Choose the correct test statistic and P-value associated with this experiment.
- Test statistic: z = 0.95, P-value: 0.1711
- Test statistic: z = -0.95, P-value: 0.1711
- Test statistic: z = 0.95, P-value: 0.8289
- Test statistic: z = -0.95, P-value: 0.8289
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