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1. A company is studying their processes and for one of them the acidity of the mixture is critical. They have obtained the following control charts.
These graphs indicateA. both are in control.B. is in control, s is not.C. s is in control, is not.
2. Capability of a process refers to
A. whether or not the process is in control.B. if a process makes quality items.C. the ability of a process to meet the requirements.
3. A company makes camshafts. The camshaft lengths need to be within a certain tolerance or they will not fit. They have produced x bar and s charts below.
These charts indicateA. both charts are in control.B. s is in control, is not.C. is in control, s is not.
Using t test for significance of slope to determine whether the independent variable is a significant predictor of the dependent variable - Find the sum of the least squares slope and intercept parameter?
Consider Obama's health care plan. There are = #s of males and females. 50% of the females approve (A) of the plan and 70% of the males do not approve (N) of the plan.
The data was used to make inferences regarding the other students taking the course. Construct a 95% confidence interval estimate. Explain your findings so that your non-quantitative partner will understand them. Their data is below:
Evaluate the standard deviation - use the conservative value for the degrees of freedom, Assume the two groups are independent and the data are approximately Normal. Let µ 1 and µ 2 represent the mean heart rates we would observe for the entire po..
Darnell lives in an area where labor is plentiful and locations for start-ups are relatively cheap. He is also confident that he can find start-up funds for a graphic arts business. As he evaluates the opportunity for his proposed venture, wh..
What is the probability that the person will be hospitalized for a drug-related problem, given that the person has received the PMI sheet?
Given the same significance level, a ________ value of t will be required to reject the null hypothesis compared to the value of z required for rejection.
Complete the table and answer the following questions. Use the .05 significance level. How many treatments are there? What is the total sample size?
What do we use the F Distribution to test? Provide an example from your place of employment or circle of influence of an instance when you could use the F Distribution.
Forecast this time series for the first 4 months of the next year using the most appropriate method. Defend your choice of forecasting method.
To be fair, the firm is randomly selecting two different employee names to 'win' the tickets. There are 6 secretaries, 5 consultants and 4 partners in the firm. Which of the following statements is not true?
Obtain the Normal Equivalent Deviates corresponding to the observed values of X and use these to produce a Q-Q plot. Does your plot indicate that these data are consistent with coming from a Normal distribution?
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