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Given a situation where a control chart with 3-sigma limits is being constructed to monitor the percentage of defective items produced by a process, if samples of 100 units each are taken from the process and the average percent defective found in the first 10 samples is .08 (8%), what is the upper control limit (rounded to two decimal places) for the process.
Describe the data appear the strength of the relationship among variables is sufficient to warrant using linear regression forecasting.
State in each of given cases whether you would expect relationship between given variables to be positive or negative or neither.
First explain what the Gini coefficient is and what hypothetical Gini values of 0 and 1 mean. Sort the data by the Gini coefficient in 2000 and look at the list of countries.
Determine the expected frequencies for each of the cells in the following contingency tables. For each problem, state how many of the expected values actually had to be computed and how many could be found by subtraction.
Following data represent concentration of dissolved organic carbon (mg/L) collected from 20 samples of organic soil. Sample standard deviation is?
A medical researcher found a significant relationship among a person's age x1, cholesterol level x2, sodium level of the blood x3, and systolic blood pressure y.
Assume that the price of non-dividend paying stock is $32, its volatility is 30%, and the risk-free rate for all maturities is 5% per annum. Use derivagem to calculate the costs of setting up the following positions.
Discuss whether this variable should be placed in the model as an ordinary quantitative variable or by means of four 0, 1 indicator variables.
Is it necessary to assume a normal distribution on the population to estimate the value of the mean spending per day? Explain.
Setermine the probability that a specific driver had exactly two violations?
We have been informed that the stock has gone up 20%. What is the probability of a rise or fall in the GDP?
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
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