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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.
Describe a study you might design that could use the Chi Square statistic. What are the variables? What are the null and alternative hypotheses? Why would the Chi Square test be appropriate for this design?
Thirty randomly selected students took the calculus final. If the sample mean was 79 and the standard deviation was 8.5, construct a 99% confidence interval for the mean score of all students.
Complete the following tasks: State the multiple regression equation. Interpret the meaning of the slopes in the equation.
The supplier agrees they will deliver on the day the order is placed. Note that the basic unit of measurement for a period is one year in this case.
Perform a parametric analysis by assessing the fractional change in the probability of failure with respect to a small change in the mean and standard deviation of selected variable.
What is the rejection point at α = .01 and indicate if you would accept or reject H o ?
Assume that causes of heart failure between individuals are independent. What is the probability that three individuals have conditions caused by outside factors?
Assume the population standard deviations are not the same. At the .05 significance level, is there a difference in the mean waiting time?
Can we conclude that the mean age of the population from which the sample may be presumed to have been drawn is less than 60 years? Let α = .05
What is coefficient of determination? Calculate F statistic. (Hint: You must complete the table to answer the question.)
1 % of healthy population tested. If 0:5% of population really has disease, determine the probability that person has disease given that test result is positive.
Use this information to construct a probability table, and then calculate each of the following probabilities:
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