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When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Suppose that a batch of 250 boards has been received and that the condition of any particular board is independent of that of any other board.
a. What is the approximate probability that at least 10% of the boards in the batch are defective?b. What is the approximate probability that there are exactly 10 defectives in the batch?
What is the probability that a waitress will refuse to serve alcoholic beverages to only 2 minors if she randomly checks the IDs of 5 students from among 9 students of which 4 arc not of legal age?
A business has 5 telephone lines. The first rings every minute on the average, the second every ½ minute, the third every 2 minutes, the fourth every 5 minutes,
assume that for the following data massed practice distributed practice s1 6 s1 5 s2 4 s2 3 s3 3 s3 2 s4 5 s4 2 s5 2 s5
a professor measures the time x that students take to complete an examination and the score y that the students
An important issue facing Americans is the large number of medical malpractice lawsuits and the expenses that they generate. In a study of 1228 randomly selected medical malpractice lawsuits
Find P-Value with 0.05 significance level, and state the conclusion about the null hypotheses (reject or fail to reject) With H1: p is not equal to 3/4, the test statistic is z=0.35
Discuss the various forms of disclosure available in published financial statements.
The standard deviation is $10,000, can the president conclude that there is difference? At a =0.10, is he correct? The hypotheses and the claim.
Use a 0.01 significance level to test the claim that most people believe that the Loch Ness monster exists. How is the conclusion affected by the fact that Internet users who saw the question could decide whether to respond.
a researcher wishes to estimate with 90 confidence the proportion of adults who have high-speed internet access. her
recently research physicians at mountain states have developed a surgery process they believe will reduce the average
a bridge culvert is designed to pass a stream discharge with an annual exceedance probability of 0.02 without
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