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Question 1: The state university desires to accept only the top 25% of all graduating senior high school who took their entrance test. This test has a mean of 200 and a standard deviation of 50. Find the cut off score for the test. Assume the variable is normally distributed.
Question 2: The average age of the company's presidents is 60 years old. Assume the variable is normally distributed. If the standard deviation is five years. find the probability that the age of a randomly selected president will be in the following range. a. Between 52 and 67 b. Between 57 and 70 c. Between 40 and 60
Question 3: In medical study. a researcher wishes to select respomdents in the middle of 45% ofthe population based on blood pressure. lfthe mean systolic blood pressure is 100 and the standard deviation is 20. find the upper and lower reading that would qualify respondent to participate in the study.
a) Create a probability model for the amount you win at this game. b) Find the expected amount you'll win.
Diagram the sample space for all possible outcomes. Use a table, tree diagram or Venn diagram.
If one is modeling a signal x(n) whose transform, X(z), contains zeros, then an all-pole model may be used to effectively model a zero with an infinite
An independent consumer group published its findings and lifetimes of electric bills manufactured by big corporations are approximately normally Distributed
Find the probability of a school-age child sustains two injuries during the year.
Show that if a random variable has a uniform density with the parameters α and β, the rth moment about the mean equals
Florida State University has 14 statistics classes scheduled for its Summer 2013 term.
Two teams of students take a probability exam. The entire group performs individually and independently. Team 1 has five members and Team 2 has six members.
According to Dan Lenard, an independent insurance agent in the Buffalo, N.Y. area, the following is a breakdown of the amount of life insurance purchased.
A deck of cards consists of ?fty two cards. There are four suits Clubs, Diamonds, Hearts, Spades, each containing thirteen cards. Among these thirteen cards
if r -0.665 and n 6 test the significance of the correlation coefficient at a .05 reject p 0 because 2.68gt 2.57do not
What do we use the F Distribution to test? Provide an example from your place of employment or circle of influence of an instance when you could use the F Distribution.
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