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An executive drives his vehicle from home to work daily. Driving times are normally distributed with a mean of 35 minutes and standard deviation of 8 minutes.
What percent of days will it take him 30 or fewer minutes?
What percent of days will it take him between 40-50 minutes?
What percent of days will it take him between 30-45 minutes?
How long will the longest 10% of the trips take?
In the graphical method, how do you know when a problem is infeasible, unbounded, or when it has multiple optimal solutions? What are the essential ingredients of an LP model? Why is it helpful to understand the characteristics of LP models?
Can we conclude at a 98% level of confidence, that the mean number of hours per day using the computer by students at IUP is the same as the typical student's usage?
Why is a normal distribution called "normal"? Investigate the answer to this question on the internet and share the answer in your own words. Be sure to cite your sources.
Use a 5% significance level (95% confidence level) to test the claim that the different vehicle categories have the same mean MPG.
Assume the probability that a person has the desease is 0.1 for all people, independently of each other. Compute the total expected number of tests necessary.
Produce a printout of the frequency tables, showing the total of both frequencies.
He notices that 21 of the throws come up 7. State the null and alternative hypothesis, and find the P-value of his observations.
Suppose that in fact 8% of the apples on the truck do not meet the standards. What is the probability that the shipment will be accepted anyway?
In a binomial distribution n = 8 and π = 0.2. Determine the probabilities of the following events.
Testing for equality of variances - Independent random samples were taken from normal distributions of the yearly production of ships built by the International Ship Building Company under
If the amounts of the electric bills are normally distributed, find the probability that the mean of the bill for 15 residents will be less than 75 dollars.
Clearly define the dependent and independent variables that are the focus of the team's study. The dependent variable is the variable whose value is the result or is a function of the control or independent variables.
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