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An investigator has prepared a drug dosage level that he says will induce sleep in 80% of people with insomnia. After examining the dose, we think that what he said regarding the effectiveness of the dose is exaggerated. In an attempt to disprove his saying, we administered the prescribed dose to 20 people suffering from insomnia and observed Y, the number of individuals to whom the dose induced sleep. We wish to test the hypothesis H0: P = 0.8 against the alternative, Ha: P <0.8. Suppose the rejection region {y ≤ 12} is used.
Determine the value of \, for P = 0.4
a. Set up a spreadsheet simulation model in which whether Atalanta wins each game is a random variable. b. What is the probability that the Atlanta Braves win the World Series c. What is the average number of games played regardless of winners
a. Give the null and alternative hypotheses which will be used.
Use a 0.05 signi cance level to test the claim that when the 13th day of a month falls on Friday, the numbers of hospital admissions from motor vehicle crashes are not a ected.
If the manufacturer's claim is correct (i.e., seconds, σ = 10 seconds), what is the probability that the average deviation from perfect accuracy would be 34 seconds or more?
What if the probability of heads is 0.25? In the Probability applet, set the probability of heads to 0.25. Explore what happens for different numbers of tosses. Summarize what you have learned.
What is the median sugar content?- What is the range of the sugar contents of these cereals.- Describe the shape of the distribution.
This is quite an easy discussion to have for larger companies, but what about the smaller ones? I would love to hear your thoughts on this.
Even though this reading method has been shown to be significantly better, why might you not recommend that your local school adopt it?
What will be the significant t-statistic for the one-tailed test and what will it be for the two-tailed test? Show your work.
What is the probability that a single, randomly selected piece of material will be defective? (Give the answer to two decimal places.)
Marks on statistics midterm test are normally distributed with mean of 78 and a standard deviation of 6. Determine the probability that class of 50 has average midterm mark that is less than 75?
Attitudes toward recycled products Some people believe recycled products are lower in quality than other products, a fact that makes recycling less practical.
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