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A. Which of these variables are discrete and which are continuous random variables?
1. The number of new accounts established by a salesperson in a year.2. The time between customer arrivals to a bank ATM.3. The number of customers in Big Nick's barber shop.5. The amount of fuel in your car's gas tank.6.The number of minorities on a jury.6. The outside temperature today.
B. A recent article suggested that if you earn $25,000 a year today and the inflation rate continues at 3 percent per year, you'll need to make $33,598 in 10 years to have the same buying power. You would need to make $44,771 if the inflation rate jumped to 6 percent. Confirm that these statements are accurate by finding the geometric mean rate of increase.
Find the value of sample covariance in linear regression model
Bob Billy is an operations analyst for Dollar-Does-It stores based in Iva, SC. He is currently studying the order and stocking policies for top-selling toy.
Plot stem-and-leaf plot and boxplot for Mtotal. Illustrate hand calculation of median location and upper hinge location of boxplot, and determine their corresponding data values.
Compare and contrast random selection and random assignment. Be sure to include a discussion of when you would want to do one or the other and the possible consequences of failing to do random selection or random assignment in particular situation..
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level.
Heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches.
In this continuous production process, the amount of toothpaste put in a tube is normally distributed with a mean of 8.17 ounces and a standard deviation of 0.12 ounces. If the actual capacity of the tubes used is 8.49 ounces, what proportion of t..
A vending machine dispenses coffee into a twelve ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.08 ounce.
Suppose x follows a distribution with density function: f(x)=C*abs(x-2), 0 =
What is the probability that the cereal would be high fiber? In other words, what is P (high fiber)?
Ten members of a fraternity take a statistics course. Here are their scores on the first exam in the course:
Indicate your hypotheses, decision rule, statistical decision and management conclusion using the critical value and then find the p-value and state your decision rule, statistical decision and management conclusion using this method.
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