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Statistically speaking, we are generally agnostic to which is a bigger problem, type I (false positive) errors or type II (false negative) errors. However, in certain circumstances it may be important to try and put more emphasis on avoiding one or the other.
Can you think of a policy; political, economic, social, or otherwise, that pushes people toward avoiding one type or another?
Does the data prove a significant difference in mean times?
By using the 0.10 level of significance, is there evidence that the population mean is above the $300?
Analyze the Regression and draw the scatter plot for results of the Hsp90 affinity and Her-2 degradation studies.
Suppose that you are interested in determining the relation between the students average SAT scores [x] and their freshman GPA [y].
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
At the .05 level, you are testing whether there is a significant difference in the proportions of college students and similar aged non college students having accidents during the two year period. If you determine not to reject the null hypothesi..
According to a recent poll, 53% of Americans would vote for an incumbent president. If a sample of 100 people results in 45% who would vote for the incumbent, test the claim that the percentage is 53%. Use a .10 significance level.
Can one conclude at a level of significance of .01 that the new ball has improved his game?
How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate µ and σ in the formula for the normal approximation to the binomial, and show the final formula you would use without g..
Following are the data collected. Should the head of the Bureau be concerned about the time taken at lunch by employees? Why?
Compute the range and interquartile range
Heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches.
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