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A multimeter in your facility is used to monitor the current in a critical drive motor. The 100 mA meter range has an error of 0.034% of reading and 0.005% of range. If the meter reading is 86.95 mA, what is the instrument error in mA? Ignore reading error.
Correlation rule states that if X and Y are correlated, X has caused Y.
Construct a 95 percent confidence interval for the true mean.
Suppose the download times for a commercial tax preparation site are normally distributed with a mean download time of 2.0 seconds and a standard deviation of 0.5 second.
At α = 0.01, is the degree of certainty independent of credits earned?
A standard deviation of 2.8 inches, what height would the doorway have to be to allow 60% of men to enter without bending over?
A local hardware store claims that the mean waiting time in line is less than 3.5 minutes. A random sample of 20 customers has a mean of 3.7 minutes with a standard deviation of 0.8 minute. If α = 0.05, test the store's claim.
Final step to be performed when testing hypothesis of population mean is to?
Explain in words general pattern of correlation is statistically important.
What are the assumptions necessary to use the z-series test? What are the assumptions necessary of use the t-series test?
There is a worker error is 0.3, and the probability that an accident will occur when there is no worker error is 0.2. Find the probability of a worker error if there was an accident.
Describe the data scales best suited for presentation in a pie chart. How effective are the pie charts that often accompany a newspaper article in explaining the statistics used in the article?
Suppose that = $7600, is there adequate evidence to conclude that mean annual wage of people from this county is signicantly dierent than state mean?
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