11. State the null hypothesis and the alternative hypothesis for this situation: “To test the quality of the work of a commercial laboratory, duplicate analyses of a purified benzoic acid (68.8% C, 4.953% H) sample were requested. The means of the reported results are 68.5%C and 4.882% H. Is there any indication of systematic error in either analysis?"
11. State the null hypothesis and the alternative hypothesis for this situation: “To test the quality of the work of a commercial laboratory, duplicate analyses of a purified benzoic acid (68.8% C, 4.953% H) sample were requested. The means of the reported results are 68.5%C and 4.882% H. Is there any indication of systematic error in either analysis?"
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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Transcribed Image Text:11. State the null hypothesis and the alternative hypothesis for this situation: "To test the quality of
the work of a commercial laboratory, duplicate analyses of a purified benzoic acid (68.8% C,
4.953% H) sample were requested. The means of the reported results are 68.5%C and 4.882% H.
Is there any indication of systematic error in either analysis?"
12. State the null hypothesis and the alternative hypothesis for this situation: “The homogeneity of
the chloride level in a water sample from a lake was tested by analyzing portions drawn from the
top and from near the bottom of the lake. Determine if the chloride level from the top of the
lake is different from that at the bottom."
13. State the null hypothesis and the alternative hypothesis for this situation: "Two different
analytical methods (method A and method B) were used to determine residual chlorine in
sewage effluents. Both methods were used on the same samples, but each sample came from
various locations with differing amounts of contact time with the effluent. Do the two methods
give different results?"
Expert Solution
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Since you have asked multiple questions, we will solve the first question for you. If you want any specific question to be solved then please specify the question number or post only that question.
There are two types of statements in the hypothesis test, they are null and alternate hypothesis. Null hypothesis the statement of equality, in which no relationship between the parameters. And alternate hypothesis is the statement of not equality, in which relationship between the parameters exist.
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