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Cruise ships of the Royal Viking line report that 80 percent of their rooms are occupied during September. For a cruise ship having 800 rooms, what is the probability that 665 or more are occupied in September?
The average cost of a one bedroom apartment in a town is $550 per month. What is the probability of randomly selecting a sample of 50 one bedroom apartments in this town and getting a sample mean of less then $530 if the population standard deviat..
A sociologist wanted to determine whether there was a difference in the amount of time children aged 5-7 spent watching tv. what is the null hypothesis? Find the expected value.
1. the complementary slackness principle states that either there is zero slack on a constraint or the reduced cost is
in the formula for a variance what is the sum if we dont square the x-u values? hint there is a special name for this
If not, what is the relationship between the percentile of the sum and the sum of percentiles? For what per- centiles is the roll-up procedure valid in this case?
Do you think it would be justified for people of certain racial or ethnic groups to be subject to additional security checks at airport check points?
Using a single-server queuing system with Poisson arrivals of 10 units per hour and a constant service time of 2 minutes per unit. How do I go about calculating how long the customer waiting time will be in seconds, on average?
Your former supervisor works for the company and is recommending you for the position based on your outstanding job performance; if you want the job, it's yours.
Identify a business research topic and define the research questions for the identified problem or opportunity
Do the data provide suf?cient evidence to indicate that the mean Hb level for children with chronic diarrhea is less than that of the normal value of 14.6 g/dL? Test the appropriate hypothesis using α = 0.01. Draw a box plot and normal plot for th..
Suppose that 800 jawbreakers are selected at random from the production lines. Would it be unusual for this sample of 800 to contain 406 jawbreakers that weigh more than .4 ounces?
Explain why those rates may be more meaningful as a measure of change across time than the actual numbers of those events.
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