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Can you describe in detail the differences in ANOVA and the five-step hypothesis testing method?
1. State hypothesis and althernate.
2. Level of significance.
3. Identify test statistic.
4. Formulate decision rule.
5. Make the decision to accept or reject null hypothesis.
Drug manufacturer knows that for a certain antibiotics, the average number of doses ordered for a patient is 20. Steve Simmons, a salesman for the company
Find out the variance for percentage of tickets? Determine the probability that your sample will have the average between 70 and 75?
Use this information to set up a 90 percent confidence interval for the proportion, p of all US workers who play hooky.
The following data show the cost of electricity during August 2010 for a random sample of 50 one-bedroom apartments in a large city:
Construct a 95 percent confidence interval for the true mean.
Which combination of factors produces smallest risk of Type I error?
Assume that correlation coefficient between 2 variables is nearly zero. What does this say about relationship between them?
Show some work for each part. A diagram can be helpful. A survey of adults found the following: 65 percent of the adults drink coffee. 35 percent drink tea. 80 percent drink coffee or tea (or both). If we choose a surveyed adult at random, find t..
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
He would like 95% confidence intervals for the average price people would be willing to pay: one for the higher-income group, one for the lower-income group.
The percentage rates of home ownership for 8 randomly selected states are listed below. Estimate the population variance and standard deviation for the percentage rate of home ownership with 99% confidence level.
Perform a study to compare the characteristics of patients discharged against medical advice from the institution
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