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In each of the following cases, decide whether or not a binomial distribution is an appropriate model, and give your reasons.
a) A firm uses a computer-based training module to prepare 20 machinist to use new numerically controlled lathes. The module contains a test at the end of the course; X is the number who perform satisfactorily on the test.
b) The list of potential product testers for a new product contains 100 person chosen at random from the adult residents of a large city. Each person on the list is asked whether he or she would participate in the study if given the chance; X is the number who say "Yes".
What does central limit theorem say about distribution of John's average payoff after 365 bets in a year?
Compute a 3-month moving average forecast of demand for April through January (of the next year).
Find out the forecast value utilizing three month moving average method, weighted moving average method, exponential smoothing and regression methods.
Explain probability distribution of X (name and parameters).
Assume the least squares equation is Y' = 10 + 20X. What does the value of 20 indicate?
For each of the 50 states and Washington, D.C., a number of statistics related to education are available for 1992
The coffee/soup machine at the local bus station is supposed to fill cups with 6 ounces of soup. Ten cups of soup are brought with results of a mean of 5.93 ounces and a standard deviation of 0.13 ounces. Construct a 99% confidence interval for th..
What is the p-value associated with the above sample result?
A sample of 81 business managers on the West Coast had an average breakfast cost of $7.65. 13. At a = 0.05, what is the test value?
What is the probability that more than one machine is in the system? Probability that more than two are broken and waiting to be repaired or being serviced? More than three? More than four?
An independent researcher has decided to study variations in TV viewing habits among three American cities. She has managed to randomly sample households in Chicago, Atlanta, and Minneapolis and gather data on the daily "on" times for households o..
A savings account was opened for a baby on 1985 with a $100 deposit. No withdrawals or deposits occurred since the account was opened. The current balance of the account is $246.47. Measured in dollars of the year in which the account was opened, how..
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