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If a gambler rolls two dice and gets a sum of four, he wins $10; and if he gets a sum of three, he wins $25. The cost to play the game is $5. What is the expectation of this game?
Place your answer, rounded to two decimal places, in the blank. However, if the expected payoff is negative be sure to use a minus sign. For example, -1.23 would be a legitimate entry.
Develop a p chart with 3-sigma control limits and evaluate whether the process is in statistical control
If the sample standard deviation is s = 10, are the data sufficient to conclude that the treatment has significant effect using a two-tailed test with α = .05?
Assuming that a difference (Δ) of 2 lbs. in the mean was important to detect, a maximum Type I Error (α) level of 5%, and the desire to run a two-tailed test, then:
What method has been used to transform Model 1 to Model 2? Equations for Model 1 and Model 2 are as follows:
A comparison group consisted of 5,055 children who had received no such treatment (brothers and sisters of the children who had received radiation treatment).
Determine the probability of fatal accident over lifetime? Describe your reasoning carefully. Suppose independent events. Why might the supposition of independence be violated?
They hope to use a sample size such that, with probability 0.95, the error will not exceed 0.04. What sample size will ensure this, regardless of what sample proportion value occurs when they gather the sample?
To test the null hypothesis that the mean waist size for males under 40 years equals 34 inches versus the hypothesis that the mean differs from 34, the following data were collected: 33, 33, 30, 34, 40, 35, 35, 32, 32, 34, 36, 30 calculate the T-v..
The hypotheses are as follows: Null Hypothesis: μD ≤ 0, Alternative Hypothesis: μD > 0. From her data, the resesarcher calculates a p-value of 0.0162. What is the appropriate conclusion? The difference was calucated as (after - before).
Suppose that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more?
Calculate the probability of a value between 75.0 and 90.Calculate the probability of a value of 75.0 and less.
Illustrate what amount of sales would be required to be a super savings club member. Elucidate amount of sales would be required to be a gold club status.
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