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Here is a probability of .08 that a vaccine will cause a certain side effect. suppose that a number of patients are inoculated with the vaccine. we are interested in the number of patients vaccinated until the first side effect is observed. Use the formula for the sum of a geometric sequence to show that the probabilities in the probability distribution table add to 1.
How would you go about studying a nonlinear or curvilinear relationship between two variables using contingency tables and chi-square tests? Provide examples from you own professional experience.
Given that the mean of 100 observations is 42.5 and that their standard deviation is 6.313, find the sum of the squares of the observations.
The amount of money requested on a home loan application at federal savings follow the normal distribution, with a mean of $270,000 and a standard deviation of $35,000. A loan applicatiom is received this morning. What is the probability:
Create a research question for which the appropriate test of the statistical hypothesis would require the use of a z-score.
It could not do anything with the airport and suffer a loss of revenue. The current value of raised revenue from a new airport is in question.
1) What is correlation? 2) What is an example of two variables that are likely to be correlated because they are both changing over time?
Why do the critical values from the Chi-square distribution get larger as the degrees of freedom get larger? Recall that this is opposite the pattern for the t-table.
A business man arrives on a randomly selected day in December. What is the probability that the temperature will be above?
Explain why a strong correlation would be found between weekly sales of firewood and weekly sales of cough drops over a 1-year period. Does the strong correlation mean that one variable causes the other?
What is the correlation between student cumulative GPA and the numbers of hours spent on school work each week? Be sure to include the computations.
Management plans to sample 150 packages per week. What is the appropriate control chart?
Which confidence interval has the most variability?
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