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Find the probability that at most 5 defective bolts will be found in a box of 200 bolts if it is known that 2 per cent of such bolts are expected to be defective. (you may take the distribution to be Poisson; e-4= 0.0183).
The Dean is hanging his head in shame. He realizes his failings in designing an adequate research design to assess the effects of the move on majors and has revised the proposal.
According to the historical data, the life expectancy in France is less than or equal to the life expectancy in Germany. A new study has been made to see whether this has changed.
What are the assumptions of a correlated-groups t-test? What measure of effect size is used for a correlated groups t-test?
You roll two fair dice, one red and one green. What is the probability of getting a number less than 5 on both?
A manager of a gasoline filling station is thinking about a promotion that she hopes will bring in more business to the full-service island. She is considering the option that when a customer requests a fill-up
The table below lists deaths in Georgia in 2004, the estimated population of Georgia in 1994 and the U.S. population according to the 2000 census. Calculations should be done by hand, but feel free to use software to check your work.
In a high school graduating class of 100 students, 42 studied math, 68 studied psychology, 54 studied history, 22 studied both math and psychology, 7 studied history and neither math nor pyschology, 10 studied all three and 8 did not take any of t..
Many people think that job satisfaction in workplace is directly related to annual income. To check the validity of this assumption survey of 430 active working adults in U.S was taken that relates their job satisfaction to their annual income.
To test whether the population standard deviation differ significantly using Chi-Square test.
If the test contains 250 questions, what is the probability that Julie will score 75% or lower? (Use the normal approximation to the sampling distribution to solve this problem.)
What method has been used to transform Model 1 to Model 2? Equations for Model 1 and Model 2 are as follows:
The number of newspapers sold daily at a kiosk is normally distributed with a mean of 300 and a standard deviation of 30. Calculate the probability that less than 250 newspapers are sold on a particular day.
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