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For a normal probability distribution, about 95 percent of the area under normal curve is within plus and minus two standard deviations of the mean and practically all (99.73 percent) of the area under the normal curve is within three standard deviations of the mean.
It falls into the region of alternative is accepted greater than .95
Select an activity you do on a regular basis (e.g., cooking a meal, cleaning the house, doing homework, etc.) and discuss how you could apply statistical quality control to improve the quality of the output of the activity you choose.
The U.S. Fish and Wildlife Service's report on the bass population in the North American lakes indicated average weight of the fish to be 3.0 lb.
Interpret values of b1, b2, b3 and b4 in this estimated regression equation.
Then the percentage of women in the populations is 53% and the percentage of men is 47%. If you were to sample 144 people at random, how many would you expect to be women?
A certain police officer stops cars for speeding. The number of red sports cars she stops in one hour is a Poisson process with rate 4, while the number of other cars she stops is a Poisson process with rate 1.
I have the t-score of 1.660 an a standard error of .036. I hope they are correct, but also need the test effect and test statistic, p-value.
If employee is chosen at random, determine these probabilities.The Employee smokes, The employees smokes, given that he/she graduated from college.
What is the level of measurement for these items related to the newspaper business?
What is the probability that a randomly selected monthly cell phone bill is more than $100?
Use Hypothesis testing to determine if the data indicate that there are significant differences among the three therapies? Test at the .05 level of significance.
At the .01 significance level, is there a relationship between job pressure and age?
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