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Suppose it is known that 10% of people who play poker machines have a gambling problem. Suppose it is also known that 20% of the population play poker machines and 5% of the population have a gambling problem. If a member of the population is chosen at random, what is the probability that he or she will be a problem gambler who does not play poker machines (rounded to 3 decimal places)?
Suppose ages for first marriages have normal distribution with standard deviation of four years. Determine the probability that the person getting married for first time is younger than 23 years of age?
It has been said that from the point of view of the general population, Type I errors are particularly undesirable. This has been used as a justification for setting alpha at such low levels as .05 and .01.
The data obtained from the 30 respondents are shown in the table. Calculate the category means and the grand mean. Show Calculations. Calculate SSy, SSx, and SSerror. Show Calculations.
Due to all the unceratinties in government health care legislation, shouldice would like to justify any expansion within a five-year time period. How would I set this problem up?
Average length of trout caught in Swanson lake is u=19.For a random sample of 51 fish caught the mean length was xbar=18.5 inches with estimated standard deviation s=3.2 inches.
q.nbspnbspstudents in a management science class have just received their grades on the first test. the instructor has
She has 95% confidence that the mean annual income of the 2 million customers is between $70,000 and $85,000. Explain the meaning of the statement.
Draw the scatter diagram. Does it appear that x and y are related? If so, how? Test to determine whether there is evidence of a linear relationship.
In a study , the average age of the male candidates who were affected , was 38.20 whereas the average age of the female subjects was calculated to 34.976 with the standard deviation of 156.91 and 116.16 respectively
three machines i ii and iii manufacture 30 30 and 40 respectively of the total output of certain items. of them 43 and
Calculate the z score for a raw score of 10 from the folowing scores:10,20,25,5,30. Based on your anser , approximately what percentile does the raw score of 10 represent?
The annual returns, in percentages, on stocks A and B for three possible states of the economy are given in the table below.
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