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Recent evident suggests that 15% of parents would change their mind about having kids. If we randomly chose n-parents and somehow made the possibility of at least one of the chosen parents to change their mind become 30%, what would the sample size n be (minimum number of parents)? Also include R code with your answer.
This is not a forum to state your opinions on whether or not you like Lebron James or anything else derogatory towards James and/or the Cavaliers
a hospital administrator wants to measure average time per hip replacement procedure performed in the institutions
a group of researchers want to test their hypothesis that sleep deprivation will decrease the number of lectures
What is the probability that a student scored below 91 on this exam?
A random sample of 150 measurements was selected from a population with unknown mean µ and a standard deviation of 20. Calculate a 95% confidence interval for µ
Assume the age of customers is normally distributed with a mean of 25 years. What is the variance of this normal distribution?
Determine the critical values, or cutoffs, assuming a two-tailed test with a p level of 0.05, for each of the designs described in Exercise.
A quality control specialist compares the output from a machine with a new lubricant to the output of machines with the old lubricant.
Suppose the real rate is 3.9 percent and the inflation rate is 5.5 percent. What rate would you expect to see on a Treasury bill?
Suppose you have a stock portfolio where 28% of the stocks earned a return of 12.2%, 12% earned a return of 15.1%, 24% of the stocks earned a return of 0%, 18% of the stocks earned a return of -1.5%, and 18% of the firms earned a return of -3%. (A..
How many packages should be sampled in order to be 90% confident of being within 0.9% of the actual population percentage of packages delivered damaged.
The puzzle asks the reader to match each president with his vice president. If you make the matches randomly, how many matches are possible? What is the probability all 10 of your matches are correct?
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