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 2.3 parts per million (ppm). A hypothesis test is to be performed to decide whether the mean cadmium level in a certain mushroom is not equal to the government's recommended limit. Complete parts (a) through (c) below. a. Determine the null hypothesis. HoiH ppm (Type an integer or a decimal. Do not round.) b. Determine the alternative hypothesis. Ha: H ppm (Type an integer or a decimal. Do not round.) c. Classify the hypothesis test as two tailed, left tailed, or right tailed. The hypothesis test is

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 2.3 parts per million (ppm). A hypothesis test is to be performed to decide whether the mean cadmium level in a certain mushroom is not equal to the government's recommended limit. Complete parts (a) through (c) below. a. Determine the null hypothesis. HoiH ppm (Type an integer or a decimal. Do not round.) b. Determine the alternative hypothesis. Ha: H ppm (Type an integer or a decimal. Do not round.) c. Classify the hypothesis test as two tailed, left tailed, or right tailed. The hypothesis test is

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter1: Variables, Expressions, And Integers

Section1.5: Adding Integers

Problem 45E

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