An engineer designed a valve that will regulate water pressure on an of 6.0 pounds/square inch. Iit is believed that the valve performs abo pounds/square inch. Assume the standard deviation is known to be C Enter the decision rule. Answer How to enter your answer
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
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Lesson: 10.4a Testing a Hypothesis about .
RICHARD YOUNG
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Question 6 of 10, Step 1 of 1
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An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure
of 6.0 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 240 engines and the mean pressure was 6.1
pounds/square inch. Assume the standard deviation is known to be 0.8. A level of significancesof 0.05 will be used. Determine the decision rule.
Enter the decision rule.
Answer
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