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1. You will win a prize if you toss a coin a given number of times and get between 40% and 60% heads. Would you rather toss the coin 10 times or 100 times, or is there any difference?
2. You will win a prize if you toss a coin a given number of times and get exactly 50% heads. Would you rather toss the coin 10 times or 100 times, or is there any difference?
The average SAT score at a regional university is u=710, and standard deviation q=60. Assume that the university has a normal distribution convert a student score X=770 into a z-score.
If the population standard deviation is known to be 7.5 hours, can we conclude at the 5% significance level that he is right?
Suppose that 51% of the women who gave birth at a certain hospital last year were over 30 years old, and that 39% were unmarried.
What is the probability that you get a seat that would fail the stress test if failing is a score of 6.2 or less and estimate of those population parameters
Determine the expected value of the right to sample. (Hint: If the merchant samples the fruit, what are the probabilities of accepting a Good box, accepting a Bad box, and not accepting the box? What are these probabilities if he does not sample t..
The 20% trimmed mean is X‾t = 220.8 and the mean is X‾ = 229.2. Verify that the .95 confidence interval for µ is (200.7, 257.6) and that for the trimmed mean, µt, it is (196.7, 244.9).
question the following data are from an experiment designed to investigate the perception of corporate ethical values
Identify the independent and dependent variables in the following descriptions of experiments:- Students watched a cartoon either alone or with others and then rated how funny they found the cartoon to be.
labour productivity improvements in distribution centrecase studyover the past decade singapores economy has grown by
a researcher was interested in determining the effect of an experimental drug on the lifespan of laboratory rats.
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
Assume you have received a class assignment to determine the attitude of students in your school toward the school's registration process. What are the validity issues you should be concerned with?
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