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Determining probability values using the Binomial distribution. An auditor of a large government department is assessing whether guidelines for tendering contracts are followed. It is known that these guidelines are breached in 10% of all contracts. The auditor samples 30 contracts.
1. Use the Binomial distribution to determine the probability that none of the contracts are in breach of the tendering guidelines.
2. Use the Binomial distribution to determine the probability that 4 or fewer contracts are in breach of the tendering guidelines.
3. Use the Binomial distribution to determine the probability that four or more of the contracts are in breach of the tendering guidelines.
The 95% prediction interval for a new patient with a 2-day cholesterol level of 220 is
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Explain your answer to someone who is familiar with the T test for a single sample, but not with the T test independent means.
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Would the null hypothesis be accepted or rejected in this case?
Can we conclude that mean time for game is less than 3.50 hours? Use.05 significance level.
A teacher gave a 25 question multiple choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0. Based on this information
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There are two telephone lines A and B. Let E1 be the event that line A is being used and E2 be the event that line B is being used
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
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