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The Bank of Hawaii reports that 7 percent of its credit card holders will default at some time in their life. The Hilo branch just mailed out 12 new cards today.
a. How many of these new cardholders would you expect to default? What is the standard deviation?
b. What is the likelihood that none of the cardholders will default?
c. What is the likelihood at least one will default?
Are there differences in satisfaction with Intake process of clients who admit with mental health problems, substance abuse problems, or both.
Set up dummy coded dummy variables to contrast each of the other groups to Group 2, medium Anxiety; run a regression to predict exam performance (Y) from these dummy coded dummy variables.
Research question: Are mean crash damages same for these 3 vehicles? Crash1 Crash Damage ($).
Calculate the population mean and population standard deviation.
The airline must sell 150 seats to break even on this particular flight. On what percent of the flights does the airline make money?
Draw a simulation experiment for car agency and simulate using fleet of four rental cars for 10 days.
The budgeting process for a Midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Since the actual expenses are unknown, the following respective probabilities are assigned: .3, .2, .25..
A company tracked the number of complaints it received during the first 6 months of last year, as shown in the following table:
Calculate the average or the median of the average or medians of the samples and compare it with the average of the population.
Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer.
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
Find the probability that 4 of the 5 committee members belong to a union.Find the probability using hypergeometric distribution.
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