For the following questions, you are simply determining which hypothesis test you should run, and writing the null and alternate hypotheses. At the Chrysler manufacturing plant, there is a part that is supposed to weigh precisely 19 pounds. Assume the standard deviation is known to be 2.2 pounds.. Write your null and alternate hypotheses.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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For the following questions, you are simply determining which hypothesis test you should run, and writing the null and alternate hypotheses. At the Chrysler manufacturing plant, there is a part that is supposed to weigh precisely 19 pounds. Assume the standard deviation is known to be 2.2 pounds.. Write your null and alternate hypotheses.
A
Ho: μ = 2.2 Ha: μ ≠ 2.2
B
Ho: μ = 19 Ha: μ < 19
C
Ho: μ = 2.2 Ha: μ > 2.2
D
Ho: μ = 19 Ha: μ > 19
E
Ho: μ = 19 Ha: μ ≠ 19.  
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