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Problem: Two rainstorms occurred in one week in a certain area. In the first storm 30 ml of rain fell per hour, and in the second storm 20 ml of rain fell per hour. Rain fell that week for a total of 35 hours for a total rainfall of 900 ml. How long was each storm?
The standard deviation was 2. At α = .10, is the number of years' experience of the taxi drivers really less than the taxi company claimed?
The majority of the data is basically distributed if there are enough subjects. For instance, if you collected test scores of only a few honor students, the data will most likely not be normally distributed because you would have a sample that did..
If a male passenger is randomly selected, find the probability that he can fit through the doorway withouth bending.
How do you find the z-score corresponding to a score of X = 100 for the distributions given below? How do you know what direction they are going?
What control chart(s) would you use for this data and what are the final control limits?
Let us speek where the preceding data are representative of the entire sector of retail sales companiesSuppose the annual profits are more than 6.5 thousand $ every employee.
Evolutionary theories often, Emphasize that humans have adapted to their physical environment. One such theory hypothesis that:
Please describe and define what the chi-square analysis is, the conditions under which it is used, and how it compares to the Pearson Correlation.
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.
Choose a variable (such as number of daily admissions at a local theater or number of miles students have to commute daily to get to their college.) Before collecting the data, decide what a likely average might be, then complete the following:
Test, at the 5% level of significance, whether the population standard deviation of hours spent studying is less than 10. Use the Critical value approach.
Assume a normal distribution for pH values. If a random sample of 10 readings in a vat is taken and the mean pH is computed, find each of the following?
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