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Winning the lottery
A state lottery's Pick 3 game asks players to choose a three-digit number, 000 to 999. The state chooses the winning three-digit number at random, so that each number has probability 1/1000. You win if the winning number contains the digits in your number, in any order.
(a) Your number is 456. What is your probability of winning?
(b) Your number is 212. What is your probability of winning?
Use the decision rule associated with part (a) and a range of selected assumed values for µ in constructing the power curve for the test.
A scientist believes that a population mean is exceeding to 250. He decides to take a random sample of 100 measurements. The sample comes out to be 259 and Standard Deviation is 40. The value of α= 0.05. Construct a null and alternative hypothesis
The length of country and western songs is normally distributed and has a mean of of 170 seconds with a standard deviation of 49 seconds.
for a continuous random variable x p27 ? x ? 74 0.35 and px gt 74 0.1. calculate the following probabilities. how
suppose that the joint density for xy is uniform over the disc centered at the origin with radius 1.a calculate the
Research the topic of Job Satisfaction using the Business Source Premier Database (EBSCO) and/or the ABI Inform Global database from the Internet.
a group of researchers studied the effect of global environmental change on grazing lands. their article reported the
They are asked if they use a laptop in class to take notes. Suppose that based on the survey, 220 of the 400 students responded "yes". a) What is the value of the sample proportion ^p ? b) What is the standard error of the sample proportion?
Develop a linear mathematical optimization model to determine how many of each desk the company should make next week to maximize profit contribution. Explain the reduced cost associated with standard desks
1. Develop the appropriate research questions and/or hypothesis for the main effects and interaction.
When sampling is done for the proportion of defective items in a large shipment, where the population proportion is 0.18 and the sample size is 200, what is the probability that the sample proportion will be at least 0.20?
College Athletics: Graduation Rate. Women Athletes at the University of Colorado Boulder have a long term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that 21 eventually graduated.
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