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Albert Pujols of the St. Louis Cardinals had the highest batting average in the 2003 Major League Baseball season. His average was .359. Assume the probability of getting a hit is .359 each time he batted. In a particular game, he batted three times.
(a) What is the probability of not getting any hits in a game?(b) What is the probability of getting three hits in a game?(c) What is the probability of getting at least one hit in a game?
I was recently told that I tested positive for a rare (only affects 1 in 10,000 people) and fatal disease (no known cure or treatment). When we were told the news, my wife was devastated - me, not so much. I asked the doctor how accurate the test is. He indicated it is 98% accurate - when you have the disease, the test is positive 98% of the time and when you do not have the disease, the test is negative 98% of the time. Calculate the probability I have the disease given I have tested positive forthe disease (hint: the answer is NOT 98%).
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
In a random sample of 16 mountain climbers who are going to attempt Mt. Mckinley, what is the probability that at least 10 reach the summit?
Suppose that you are interested in determining the effectiveness of an intensive supervision program (ISP) for poor student performers. To examine its effectiveness, you keep track of 12 students entering an ISP for one year and tabulate the numbe..
One of the most commonly used statistical techniques is the comparison of two means, also known as the t-test (for this you need quantitative, or interval level data).
How many voters required to be sampled to evaluate the proportion within 0.05 with 95% confidence?
The length of the thorax (where the wings and legs attach) in a population of male fruit flies is approximately Normal with a mean 0.800 (mm) and standard deviation 0.078 mm. What proportion of flies have thorax length 0.9 mm or longer?
Found mean number of sticks of gum chewed per day was 9. Standard deviation of population is 1. At α = 0.05, is number of sticks of gum person chews per day actually greater than 8?
Show draw a cause-and-effect diagram to organize the possible causes of delayed flight departures into the following maj categories.
A researcher believes that if she uses a different text the students will score differently on the standardized test but she doesn't know what the difference is.
Standard deviation of 10 pounds.. Find the probability, P(W
An F statistic is any statistic that follows an F distribution. Which of the following are true about F statistics and f distribution? Select all that apply
You have a standard deck of cards and you take out 2 cards at random. Let Y1 represent the number of red Queens in your sample and let Y2 represent the number of spades in your sample.
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