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Question: Selecting the appropriate control chart and limits. At the present time, about 6 out of every 1000 lots of material arriving at a plant site from outside vendors are rejected because they do not meet specifications. The plant receives about 350 lots per week. As part of an effort to reduce errors in the system of placing and filling orders, you will monitor the proportion of rejected lots each week. What type of control chart will you use? What are the initial center line and control limits?
a coin is tossed three times.1. what is the probability that the coin will land heads at least twice?2. what is the
If the decision to incur the high additional programming cost was to be made if p > 0.90, was the right decision made (when Eidos went ahead with the ponytail)?
Test claim that mean responses are same for all populations of patients receiving either treatment and of either gender.
Use the given data set to solve the following problems: 50, 55, 60, 60, 70, 80. Find the mean, median, and mode of the given Data set. Suppose that we increase each value by 4, recalculate the measures of the centre
Is a sample size of 1,000 a reliable measure for a population of 5,000? Is a sample of 500 volunteers a reliable measure for a population of 2,500?
Suppose that a random sample of 40 toddlers finds that 34 know what color Barney is. What is the 90% confidence interval for the percentage of toddlers who know what color Barney is?
Estimating a Multiple Regression Model for GCC countries: The impact of Exports and FDI (Foreign Direct investment) on GDP in Qatar (1990 - 2015)
when performing a one-way anova the error sum of squares can be obtained by subtracting the treatment sum of squares
Test the regression model for significance of regression. Using a = 0.05, find the P-value for the test and draw conclusions. Evaluate the contribution of each regressor to the model using the t-test with a = 0.05
What is a restricted range, and what effect does it have on correlation coefficients? How would you detect and correct a restricted range?
The expected peak expiratory flow rate in adults is 300 with a standard deviation of 50. how many subjects should be enrolled to ensure 80% power to detect a difference of 15 liters per minute with a two-sided test and significance level of 0.05?
A component has an exponential time-to-failure distribution with a mean of 10,000 hours. The component has already been in operation for its mean life. What's the probability that it will fail by 15,000 hours?
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