Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb and accumulate cadmium at high concentrations. Some governments have a safety limit for cadmium in dry vegetables at 0.46 part per million (ppm). A research team measured the cadmium levels in a random sample of edible mushrooms, where the hypothesis test is to decide whether the mean cadmium level in the sample is greater than the governments' safety limit. The null and alternative hypotheses are Ho: = 0.46 ppm, H: u> 0.46 ppm. Complete parts (a) through (e) below. a. Expiain wnat it wouiu mean to make a type i error. Choose the correct answer below. O A. Atype l error would occur if in fact u>0.46 ppm, but the results of the sampling lead to the conclusion that u = 0.46 ppm. O B. Atype l error would occur if in fact u = 0.46 ppm, but the results of the sampling fail to lead to the conclusion that u> 0.46 ppm. O C. Atype l error would occur if in fact u = 0.46 ppm, but the results of the sampling lead to the conclusion that u>0.46 ppm. O D. Atype l error would occur if in fact u> 0.46 ppm, but the results of the sampling fail to lead to the conclusion that u = 0.46 ppm. b. Explain what it would mean to make a type Il error. Choose the correct answer below. O A. A type ll error would occur if in fact u> 0.46 ppm, but the results of the sampling lead to the conclusion that u>0.46 ppm. O B. Atype Il error would occur if in fact u =0.46 ppm, but the results of the sampling fail to lead to the conclusion that u>0.46 ppm O C. A type Il error would occur if in fact u = 0.46 ppm, but the results of the sampling lead to the conclusion that u>0.46 ppm. O D. Atype Il error would occur if in fact u> 0.46 ppm, but the results of the sampling fail to lead to the conclusion that u >0.46 ppm.
Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb and accumulate cadmium at high concentrations. Some governments have a safety limit for cadmium in dry vegetables at 0.46 part per million (ppm). A research team measured the cadmium levels in a random sample of edible mushrooms, where the hypothesis test is to decide whether the mean cadmium level in the sample is greater than the governments' safety limit. The null and alternative hypotheses are Ho: = 0.46 ppm, H: u> 0.46 ppm. Complete parts (a) through (e) below. a. Expiain wnat it wouiu mean to make a type i error. Choose the correct answer below. O A. Atype l error would occur if in fact u>0.46 ppm, but the results of the sampling lead to the conclusion that u = 0.46 ppm. O B. Atype l error would occur if in fact u = 0.46 ppm, but the results of the sampling fail to lead to the conclusion that u> 0.46 ppm. O C. Atype l error would occur if in fact u = 0.46 ppm, but the results of the sampling lead to the conclusion that u>0.46 ppm. O D. Atype l error would occur if in fact u> 0.46 ppm, but the results of the sampling fail to lead to the conclusion that u = 0.46 ppm. b. Explain what it would mean to make a type Il error. Choose the correct answer below. O A. A type ll error would occur if in fact u> 0.46 ppm, but the results of the sampling lead to the conclusion that u>0.46 ppm. O B. Atype Il error would occur if in fact u =0.46 ppm, but the results of the sampling fail to lead to the conclusion that u>0.46 ppm O C. A type Il error would occur if in fact u = 0.46 ppm, but the results of the sampling lead to the conclusion that u>0.46 ppm. O D. Atype Il error would occur if in fact u> 0.46 ppm, but the results of the sampling fail to lead to the conclusion that u >0.46 ppm.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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