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Number of students who graduate College every year is Normal Distribution with mean = 400 and standard deviation 50. Find probability that this year between 300 and 500 students will graduate College.
Tip: Convert 300 and 500 to z values, use Appendix Table II and then apply rule: P(a < x < b) = P(x < b) - P(x < a)
Write a formula for the Poisson approximation for probability. Using your formula estimate the probability that a given student is called upon more than twice - What is the probability that a particular block will receive no leaflets
question a country library in minnesota reported the following number of books checked out in 15 randomly selected
State the Null Hypothesis and the Alternative Hypothesis
a board of directors consists of twelve men and five women. a four-member search committee is randomly chosen to
Find probability using normal distribution.Using N (1152, 84), the Normal model for weight of Angus steers, what percent of steers weigh.
During a professor's office hours, students arrive, on average, every ten minutes. Assume that the distribution of the time between arrivals follows an exponential distribution. Suppose that a student has just left.
Many newspapers, when reporting results of political polls, say that 'with 95% confidence, the results are in error by no more than ±3 percentage points'.
A screening test for a newly discovered disease is being evaluated for its effectiveness and sensitivity as a screening test in industry. In order to determine the effectiveness of the new test, it was administered to 880 workers. Of those, 120 of..
1. What are some of the principal elements of E.H. Sutherland's contribution to the study of white collar crime? 2. What are some of the limitations of Sutherland's approach
A study was completed that examined the relationship between coffee consumption and level of stress for a group of 50 undergraduate students. The correlation was .373, and it was a two-tailed test, done at the .01 level of significance.
Show all the steps of your hypothesis test including a) the claim being tested , b) the null and alternative hypothesis, c) the test statistic, d) the p value, e) initial conclusion, and f) a final conclusion about the original claim.
Check any assumptions of the hypothesis test; Write down both the null and alternative hypotheses; Carry out the t test and report the p-value, and the test statistic.
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