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An airline carriers 100 passengers and has doors with a height of 78 inch. height of men are normally distributed with a mean of 69.o in and a standard deviation of 2.8 in.a. if a male passenger is randomly selected, find the probability that he can fit through the doorway without bending.
An element E has a constant failure rate (lamda) and a reliability at time t of R(t)=p, if p=0.2 and 0.8, What is the effect on Rs(t), and basic reliability, serial MTBF, of adding additional elements to the series baseline system containing a sin..
Probability of selecting a household with no children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude?
A random sample of 40 part time workers has a mean annual earnings of $3120 and a population standard deviation of $677. Compute the 95% confidence interval for the mean.
consider a multiple choice examination with 50 questions. each question has four possible answers. assume that a
What is the difference between a descriptive model that is developed using multiple regression analysis with time-series data and a model that is considered predictive?
When 6 telephones are received, all of them are free of defects. What is the written description of the complement of the above event?
Dr. Stallter has been teaching basic statistics for many years. She knows that 80 percent of the students will complete the assigned problems.
If there are 12 business-class passengers and 50 tourist-class passengers on a particular flight, what are the expected value of total luggage weight and the standard deviation of the total luggage weight?
What is the probability that the second one selected is defective given that the first one was defective? What is the probability that both are defective?
How many more sheep should be included in the sample if we want to say with 98% confidence that the population mean weight of the Jacob sheep is within 2.0 lb of the sample mean?
In a sample of 200 women, 144 of them said they were in debt. Test the claim that women are in deeper debt than men, at a=0.01.
In order not to violate the requirements necessary to use the chi-square distribution, each expected frequency in a goodness of fit test must be:
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