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Find the margin of error for the 95% confidence interval used to estimate the population proportion.
In a clinical test with 2349 subjects, 1232 showed improved from the treatment.
A) 0.0273
B) 0.0226
C) 0.0172
D) 00202
Is there a significant difference the four testing conditions?
Determine the probability that we would reject null hypothesis given that it is true?
What is the minimum sample size needed in order for you to be 95% confident that your estimate is within 5 of µ? Use the value 20 for the population standard deviation of scores on this subsection.
We are interested in testing to see if the variance of a population is less than 7. The correct null hypothesis is:
Create the corresponding decision tree and make recommendations.
What happens to the probability of getting exactly 50% heads?
Evaluate the value of the F statistic for Devices- I plan an experiment to test the latest conflicting diet programs. The factor for Diet will involve three different levels: low fat, low carbohydrate, and low calorie. The other factor will involve..
Perform a contingency analysis on the data to determine if there is any dependency between the number of level of education attained by the father and the size of his family.
At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
What is the probability of selecting an accounting major, given that the person selected is a male?
Give a mathematical expression for the probability density function of driving distance.
Run an ANOVA using only groups 1 to 6 (You can hide group 7 from the analysis by data followed by select cases and then you filter out group 7 by if GROUP~= ). Also run the posthoc tests LSD and Bonferroni.
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