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Question: 1. Why is it possible to reject the null hypothesis when it is true?
2. Why is it possible to not reject the null hypothesis when it is false?
3. For a given sample size, if α is reduced from 0.05 to 0.01, what happens to ß?
4. For H0 : μ = 100, H1 : μ ≠ 100, and for a sample of size n, why is , larger if the actual value of is 90 than if the actual value of is 75?
If an overrun contract was bid at 12 million dollars, what does the least-squares line predict for the cost of overrun (as a percent of bid price)?
a fast food center wishes to estimate the proportion of people in its city that will buy its products. suppose the true
Unknown to the supervisor, three of the workers have regularly been giving illegal deductions to applicants. What is the probability that both of the two workers chosen have been giving illegal deductions?
Why is the margin of error larger for the difference in support between the parties than for the overall level of support?
derive the expected mean squares for a two-factor analysis of variance with one observation per cell assuming that both
Can you please answer each question with 70 words or more using first person. How does social class impact buying decisions for products and services?
a small company involved in e-commerce is intersted in statistics concerning the use of e-mail. a poll found that 39 of
Prepare a short letter to the manufacturing manager at Dragon Wood Furniture discussing the effectiveness of the sampling process that her company is using.
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Consider a double sampling plan given by the following parameters: N =1200, n1= 50, c1= 1, r1=4, n2= 110, c2= 5, r2=6. Find the probability of accepting lots that are 4% nonconforming. What is the probability of rejecting a lot on the first sample?
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
In the following regression output using data on 40 ferns In Ine textile Industry, the variable PROFIT is measured in millions of dollars per year. ADV Is expenditure on advertising per year in millions. and RD Is expenditure on research ar4 develo..
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