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A drug is suspected of causing an elevated heart rate in a certain group of high-risk patients. Twenty patients from the group were given the drug. The changes in heart rates were found to be as follows.
-1 8 5 10 2 12 7 9 1 34 6 4 12 11 2 -1 10 2 8
Construct a 95% con?dence interval for the variance of change in heart rate. Assume that the population has a normal distribution and interpret.
Probability of passing a student who guesses on every question is less than 0.10. What score should be set as the lowest passing grade if each question is worth one point?
the coca-cola company reported that the mean per capita annual sales of its beverages in the united states was 423
Derive the formula for the entropy of an ideal monoatomic gas using the microcanonical ensemble. This formula is known as the Sackur-Tetrode equation.
Calculate a -way anova situation. suppose a school psychologist a classroom setting and you want to find the effect that five teaching styles.
You have some estimates of national accounts numbers for a closed economy for the coming year. Under one set of expectations, government purchases will be $30 billion, transfer payments will be $10 billion, and taxes will be $45 billion.
According to the National Football League, the average salary for players for the 2010 season was about $1.9 million while the median salary is around $770,000. Why are both numbers reported? What might the difference between the two statistics me..
Does this data provide evidence at the .05 significance level that there is a difference in the proportion of humorous ads in British versus American trade magazines? Please show work.
the maximum patent life for a new drug is 17 years. subtracting the length of time required by the fda for testing
What is the best estimate of the average tread life for the entire population of these tires?
Develop a simulation for finding the probability that when 50 people are randomly selected, at least three of them have the same birth date. Describe the simulation and estimate the probability.
The following regression line shows how the monthly return for the mutual fund TWCUX (Twentieth Century Ultra Fund) is mathematically related to the S&P500 monthly return.
consider an experiment in which our sample space is s1234567.also e1124 e223456 e37. describe the outcomes in each one
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