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In your biology class, your final grade is based on several things:
A lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 19% of your total grade, each major test is worth 23%, and the final exam is worth 35%. Compute the weighted average for the following scores: 60 on the lab, 91 on the first major test, 74 on the second major test, and 60 on the final exam.
What are the mean value and standard deviation of the number among these 15 that are from the second section? What are the mean value and standard deviation of the number of projects not among these first 15 that are from the second section?
The multiple coefficient of determination was R2 = 0.783. The sample size used was n = 60 months (5 years of data). Analyze the results presented.
As far as the ordering of this pair of questions is concerned, do you think it is better to order them as above or in reverse order? Explain your reasons.
Explain thoroughly, the concept of standard deviation. How does range affect standard deviation? What is a z-score, and how do z-scores relate to the mean of a set of data?
a local lawn service has determined the average time it takes to mow an average residential yard is thirty-five
List the various hearings that will typically occur and how the case is affected by each event.
Suppose the doctor would be content with 90 % confidence. How does the decrease in confidence affect the sample size? required?
How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 0.04 with 98% confidence?
You collect a random sample of size n from a population and calculate a 90% confidence interval. Which of the following strategies would produce
The overall results on the French exam had a mean of 72 and a standard deviation of 8, while the mean math score was 68, with a standard deviation of 12. On which exam did she do better compared with the other freshmen?
Use the sign test with a = 0.01 to determine whether there is any evidence that the median amount of stored DDT on farms is greater than 2.0 kg.
A box contains three marbles - one red, one green, and one blue. Consider an experiment that consists of taking one marble from the box, then replacing it in the box and drawing a second marble from the box.
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