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To Buy or Not to Buy - with reference to your advance airline ticket purchase What you can do is to choose a couple or a few Airlines and map out their probabilities of not being in business in 6 mths. Draw the probabilities out like an org. chart, then choose to buy from the airline that is least likely to go bankrupt in June. Your research will include getting the bankruptcy predictive probabilities from.
Create a 95 % confidence interval for the true mean. Why might normality be the issue here?
The weekly demand for a product follows a normal curve with an average of 1000 units and a standard deviation of 200 units. In how many weeks during a typical 52-week year would be above 800 units?
Determine the distributions given below represent a probability distribution. Justify your answer.
Then describe trade-offs which will happen when you lower sample to $10,000 to meet their budget.
One group was enquired, questions what they saw. One group was enquired, "About how fast were cars going when they smashed into each other?"
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
A local hardware store claims that the mean waiting time in line is less than 3.5 minutes. A random sample of 20 customers has a mean of 3.7 minutes with a standard deviation of 0.8 minute. If α = 0.05, test the store's claim.
The top food snacks consumed by adults aged 18-54 are gum, chocolate candy, fresh fruit, potato chips, breath mints/candy, Ice cream, nuts, cookies, bars, yogurt, and crackers.
A study report in Journal of Small Business Management (1977) concluded that self-employed individuals experience higher job stress than individuals who are not self employed.
The sample standard deviation was 1.1 years. Using the 0.99 degree of confidence, what is the confidence interval for the population mean?
I'm having difficulty understanding and showing in layman terms or simple terms an example and comparison between the ANOVA test, Kruskal-Wallis test, and T-Test Statisitc.
A company must hire a new CFO and prepares a final list of five candidates - all are equally qualified. Two of the candidates are members of a minority of a minority group. To avoid bias in the selection of the candidate
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