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Consider an experiment that results in a positive outcome with probability 0.38 and a negative outcome with probability 0.62. Create a new experiment consisting of repeating the original experiment 3 times. Assume each repetition is independent of the others. What is the probability of three successes?
The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?
Build a scatter plot, Find the value of the linear correlation coefficient r, and find the critical value of r using α=0.05. Determine whether there is sufficient evidence to support a claim of a linear correlation between the two variables.
Calculate the suitable mean response time from both proposed locations and find out which proposed site must be selected for the new emergency facility.
What is the probability of this project being completed earlier than 19 days?
Is the Euro fair? Soon after the Euro was introduced as currency in Europe, it was widely reported that someone had spun a Euro coin 250 times and gotten heads 140 times. We wish to test a hypothesis about the fairness of spinning the coin.
Assume that you choose a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
Discuss whether the percent distribution of the cross-tab and chi-square supports/does not support the researcher's hypothesis.
Calculate P value? Calculate critical value?
A biologist has found the average weight of 12 randomly selected mud turtles to be 8.7 lb with standard deviation 3.6 lb. find a 90% confidence interval for the population mean weight of all such turtles.
A researcher selects a random example of college students and measures number of hours they spend watching television per week and their grade point average.
Do the above values appear to be in statistical control, justify your answer?
Solve the problem: According to police sources a car with a certain protection system will be recovered 94% of the time. Find the probability that 4 of 8 stolen cars will be recovered.
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