Determining the increased military spending
In a study conducted by UCLA, it was found that 30% of college freshmen support increased military spending. If 12 college freshmen are randomly selected, find the probability that more than 5 selected students support increased military spending.
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A student guesses at each question. Assuming the choices are all equally likely, what is the probability that the student gets all three correct?
Find the 90% confidence interval for the true difference in proportions for the data in problem above.
Find the probability that a sample of 900 voters would yield a sample proportion in favor of the candidate within 3 percentage points of the actual proportion.
If the mean plasma-aldosterone level in African American children what was them mean=230 pmol/L with standard deviation which is 203 pmol/L.
The following table shows the distribution of blood types in the general population. What is the probability a person will have type O blood?
A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 9. At ? = 0.05 is there enough evidence to reject the researcher's claim? Show all work.
A random variable X follows a normal distribution with a mean of 10 and standard deviation of 3. A standardized value of X was found to be Z = 3. The value of X is then
determines the length of the short axis of the galaxy A to be 2.9 × 1017 km. What would the length of this axis be as measured by an observer living on a planet within the galaxy A
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