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Duplicate the steps used in the proof of Theorem 8 to prove Chebyshev's theorem for a discrete random variable X.
Theorem 8
(Chebyshev's Theorem) If μ and σ are the mean and the standard deviation of a random variable X, then for any positive constant k the probability is at least that X will take on a value within k standard deviations of the mean; symbolically
Find the lowest possible score a candidate can score and still qualify. Assume the scores are normally distributed.
For each of the following statistical tests, state the null hypothesis and the two sided alternative hypothesis.
If the standard deviation of the price of meals in San Francisco was $10, determine the largest proportion of meal prices that could be larger than $50.
a sample of 51 observations has a mean of 98 and a standard deviation of 7. a second sample of 69 observations has a
Suppose that 47 showed reduced allergic reactions and 17 showed an increase in allergic reactions. Are these results sufficient to conclude that the self hypothesis has a significant effect.
Please state the steps used to perform a hypothesis test on the coefficient of correlation and provide a detailed example. Details are greatly appreciated!
What is the probability that the option will be exercised?
question as a sample size approaches infinity how does the students t distribution compare to the normal z
1. you are interested in testing the distance of two golf balls brand a and brand b. you take a random sample of 100
Community college spends each year. If she wishes to be 90% confident, how large a sample is necessary if the standard deviation is known to be $80?
Computing the probability values using normal distribution - Find the probability that a regular rat (without the supplement) would solve the maze with a score less than or equal to X = 24 errors?
assume a population of 2 4 and 12. assume that samples of size n2 are randomly selected with replacement from the
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