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Cans of soft drinks cost $0.30 in a certain vending machine. What is the expected value and variance of daily revenue (Y) from the machine, if X, the number of cans sold per day has E(X)=125, and Var(X)=50?
These individuals are then examined and categorized as to whether they have a heart disorder. The observed frequencies are as follows:
Selection of a location for a prospective Wal-Mart creates many questions for executives. A suitable site would be one that has an adequate demand for Wal-Mart offerings, sufficient transportation resources, and an available labor force.
Utilizing form of Regression method which would give you highest performing model to forecast Sales. Utilizing your model forecast the sales
A researcher is interested in determining the proportion of public elementary schools that have a mandatory school uniform policy. The researcher randomly sampled n=400 public elementary schools and found that 100 of the schools have a mandatory s..
In past, mean processing time was 45 days. At 0.05 level of significance, is there evidence that mean processing time has changed from 45 days?
Four percent of the customers of a store buy cigars. Half of the customers who buy cigars buy beer and one fourth of those who buy beer buy cigars. The table is given below:
Of the adult US population 36% has an allergy. A sample of 1200 randomly selected adults resulted in 33.2% reporting an allergy. Identify the statistic and give its value
You only worry if there is at least a 50 or more percent chance that you have the disease. Suppose that test has same specificity = p For what value of p will you start to worry?
We are doing a team project for our statistics class and our project is about "Math Anxiety". We are stuck on one question and the questions is "the teams will state the null and alternative hypotheses
If the least squares equation for sales data going from 1984 to 1990 is Y1 = 10 + 1.3X (in $ millions) found using the coded method, what is the plot on the straight line for 1988? (x and y values)
What is the 95% confidence interval for the proportion of all delinquent customer accounts at this manufacturing company?
What is the Standard Deviation of the Probability Distribution that would list the number of students (from 0 to 92) and the probability of each. If the answer cannot be calculated
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