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A wildlife biologist is studying turtles that have been exposed to oil spills in the Gulf of Mexico. Previous studies have determined that a particular blood disorder occurs in turtles exposed for a length of time to oil at a rate of 1 in every 8 exposed turtles. The biologist examines 12 turtles exposed for a considerable period of time to oil. If the rate of occurrence of the blood disorder has not changed, what is the probability of each of the following events? She finds the disorder in:
a. none of the 12 turtles.b. at least 2 of the 12 turtles.c. no more than 4 turtles.
We are asked to test for independence between age (i.e., adult and teen) and drink preferences.
you conducted a chi-square goodness of fit test in your asci 691 capstone project. unfortunately you did not get the
A researcher is testing the effect of a new cold and flu medication on reaction time. A sample of n = 9 students is obtained and each student is given the normal dose of the medicine.
Morality Study for a group of four men, the probability distribution for the number x who live through the next year is as given in the accompanying table.
What happens to the confidence interval and the power of the test at a particular point of interest
Under what circumatances do you use a one-sided confidence interval instead of a 2 sided confidence interval?
Describe ways in which the use of MS Excel as a tool for interpreting data can be used by a manager of an organization.
Standard deviation of the ages is 6 years. How large a sample should be taken so that the estimate is within 2 years of the population mean?
Based on past information, for the cars used, the distance traveled by a car in a day averages 170 km with a standard deviation of 40 km. What proportion of cars used in any day travel less than 100 km?
If we wanted to shorten the interval of the estimation of the true mean of Saturday sales to a width of $600 in total, what should the size of our sample be to achieve it?
in a random telephone survey to estimate the proportion of households with a personal computer 720 out of 960
At the 0.005 level, evaluate the effectiveness of the new ball in increasing distance. Using the appropriate statistical table, what is the approximate p-value for this test?
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