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A 90% confidence interval for a proportion is (0.265, 0.385). What is the probability that the population proportion is greater than 0.385?
A. 0.01
B. 0.1
C. 0.05
D. 0.9
What are the theoretical considerations of hypothesis testing and why are these considerations important when conducting research studies?
if z is a standard normal random variable compute the following probabilities by standardizing.1. what is p-2ltzlt1.82.
A certain airplane has 2 independent alternators to provide electrical power. The probability that a given alternator will fail on a 1 hour flight is 0.02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the othe..
Employer wishes to interview only those applicants who score in top 15%. What must cut-off score be for interviews?
While it can't be denied that advertising impacts sales, it is also true that advertising is expensive and companies want to advertise in ways that have the greatest benefit for the amount of money spent.
Population of consumers where 30% of them favored a new product and 70% of them disliked it. If 20 persons are sampled, what are the probabilities of finding: Binomial
Survey of 8000 women, 5431 say they change their nail polish once a week. construct a 95% confidence interval for the population proportion of women who change their nail polish once a week.
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whereas Zoe's class has an average of 83% with a standard deviation of 12%. Assume that scores in both classes follow a normal distribution. Convert Maria's midterm score of 84 to a standard z score.
Calculate 95 percent and 99 percent confidence intervals for m. Using the 95 percent confidence interval, can we be 95 confident that m is at least 50 pounds? Explain.
The New York Times recently reported that 60% of college entrants into elite public and private colleges in the U.S. have parents that earn over $150,000/yr.
suppose that a random sample of 100 public owner controlled companies in new zealand is found to give a mean audit
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