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A student randomly guesses at a 12-question, multiple-choice test where each question has 5 choices. What is the probability that the student will correctly answer exactly six questions?
where 1 = smooth-yellow, 2 = smooth-green, 3 = wrinkled-yellow, and 4 = wrinkled-green. Can the measures of variation be obtained for these values? Do the results make sense?
You are in charge of a new study on the effect of caffeine and memory. From , a previous pilot study , you find that the effect size is 0.6. You want to have a type I error at 0.05 and a type II error of 0.2 . In your study you split your sample i..
Conduct appropriate descriptive statistical analysis, using selected software, for the given data (include appropriate graphs, if possible). Ensure you include screen shots of the MS Excel analysis.
A study conducted by Lopez-Camllo, Avila, and Dubrow (1994) investigated health hazards associated with the consumption of food local to a particular geographic area, in this case chili peppers particular to Mexico. It was a population-based case-con..
If a player enters one lottery each week, what is the expected number of weeks until a player matches all 6 numbers in the state's sample?
Calculate the average student score necessary for the district to retain its federal funding. You may assume that the Standard Deviation will not change. This will require some thought. Think of the z score. You will be solving for mu (average test s..
assume that the significance level is a0.05. use the given information to find the p-value and the critical values.with
given a sample size of 25 with sample mean 736.2 and sample standard deviation 82.3 we perform the following hypothesis
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
1. the scores on the mathematics section of the sat typically follow the normal curve. suppose the average was a 510
ABC, Inc. has a total of 53 Visa/MasterCard sales tickets worth $12,867.00. There are 34 Visa sales tickets totaling $7,883.50 and 19 MasterCard sales tickets totaling $4,983.50. How do I figure out how many tickets fell at each of the above 6 qu..
What would be the critical value under the null hypothesis if the size of your test were 5%?
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