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A contestant on a game show wins five dollars for each correct answer. the game is plated as follows: the contestant is allowed to continue answering questions until giving an incorrect answer at which time the game ends. If the probability a given contestant gives an incorrect answer is 1/3, what is the expected dollar winnings? Asumming each question is independent of prior questions
Which of the following methods could be used to determine future order quantities? forecasting, regression, inventory models.
Use the given data to find the best predicted value of the response variable.Eight pairs of data yield r = 0.708 and the regression equation y = 55.8 + 2.79x. Also, mean y = 71.125. What is the best predicted value of y for x = 5.7?
Pilot sample of 30 items indicates a sample standard deviation of 900. Determine the required sample size if the confidence level is 90%.
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
A survey of the number of calls received by a sample of Southern Phone Company subscribers last week revealed the following information.
There are two ways to run the experiment. The first is to obtain a random sample of 12 drivers, divide them into two groups at random and assign one group to the standard light and the second group to the new light. Suppose the table below represents..
Let X be net income of the AirCanada from the above described random experiment. Compute the probability function of X.
Warren Road MacBurger that the mean waiting time was 2.75 minutes. At the 0.05 significance level, can we conclude that the mean waiting time is less than three minutes?
Suppose a machine is worth 33000 after 4 years and 18000 after 8. Find the rate of depreciation using the linear depreciation method
The lifetime of a light bulb is an Exponential RV with a mean of 800 hours. Let L represent the time (in hours) that one randomly selected light bulb will burn. What is the possibility the light bulb burns for more than 1000 hours.
in the game of roulette a wheel consists of 38 slots numbered 0 00 1 2 ... 36. to play the game a metal ball is spun
Suppose the length of a typical televised football game, including all commercial timeouts, is normally distributed with a mean of 2.45 hours and standard deviation 0.37 hour.
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