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Have been searching for the answers for these two questions for the past three days and cannot find them. Number 3 I answered but I want to check to see if I answered it correctly. Can anyone assist? Thank you in advance.
1. What is the most controllable method of increasing the precision (narrowing) of the confidence interval?
2. What percentage of times will the mean (population proportion) not be found within the confidence interval?
3. When you draw a sample from a normal distribution, what can you conclude about the sample distribution? Explain.
1) What is correlation? 2) What is an example of two variables that are likely to be correlated because they are both changing over time?
Any person who is familiar with these trees understand the height of a California redwood tree which is related to another characteristics of the tree.
Provide a business example that you can apply regression to. State the null and alternative hypothesis using the appropriate phrasing for the type of regression chosen.
Determine: SS(xy)Linear correlation coefficient, r. Bar graph below compares mean time in seconds for 7-yr old girls to complete certain task.
In this problem I am having an issue trying to determine what equation to use to solve. Is this a one or two way ANOVA or should I just use a z-test to solve?
For a random sample of 50 batteries, what is the probability that the sample mean will be less than 27.5 hours?
If were interested in studying obesity in a small sample size of 10 adult men by looking at their body weights and heights, would you say that trimming the mean is a good idea? What are the advantages of trimming the mean in this situation? What a..
Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities.
The article should include a margin of error and confidence interval. Discuss the subject matter in the article, and interpret the results and what the confidence interval and margin of error mean as they apply to the specific subject matter.
Assume you want to estimate the population proportion,p, and the estimator for the mean proportion (p-hat)= 0.34, N = 6000, and n = 1300. Find an approximate 95% confidence interval for p.
What is the difference between common cause variation and special cause variation?
The wheat harvesting season is short. Farmers deliver their truck loads of wheat to a giant central storage bin within a two-week span. Because of this, wheat-filled trucks waiting to unload and return to the fields have been known to back up for ..
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