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1. Distinguish between a Type I and a Type II error. Why is your significance level the probability of making a Type I error?
2. What is meant by statistical significance?
3. What factors are involved in choosing a significance level?
Describe the set of all decisive coalitions for "guilty" over "innocent," and the set of all minimal decisive coalitions for this pair of alternatives.
Using n = 150, do you ever get a p-value less than 0.05? If so, what does such a p-value mean? Would you expect to get a few such p-values? Explain.
The throttle-control sector pivots freely at O. If an internal torsional spring exerts a return moment M = 1.8 N · m on the sector when in the position shown, for design purposes determine the necessary throttle-cable tension T so that the net mom..
question a study recently reported that the average age of a female shareholder is 44 years. a broker in adelaide wants
A. What is the 90% confidence interval for the daily sales at all restaurants. B. What is the probability that the average sales are really $32,000 or more per day? Assume that the population average is $30,000 per day and the std. Deviation is $2..
(a) What is the probability that the claim will be rejected when the cure probability is, in fact 0.8? (b) What is the probability that the claim will be accepted by the government when the cure probability is as low as 0.7?
what does the p-value tell the business statistician especially in terms of the normal curve? if the p-value is smaller
For each format, create a scatterplot showing the amount of space needed (in MB) for storage based on the length (in seconds) of the song. Comment on what you see in the scatterplots.
The desired percentage of silicon dioxide in a certain type of cement is 5. A random sample of 36 specimens gave a sample average percentage of 5.21 and a sample standard deviation
Estimate the true proportion of all Americans who are in favor of gun control legislation using a 90% confidence interval.
There were 1000 more students at the soccer game than nonstudents. Student tickets were $8.50 and nonstudents were $13.25. If the total revenue for the game was $75,925, then how many tickets of each type were sold?
Create a random walk where the initial state is equally likely to be any one of the five pages.- Draw a transition diagram and find the probability transition matrix for this Markov chain.
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