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In a computer store, 30% (.3) of the computers in stock are laptops and 70% (.7) are desktops. Five percent (.05) of the laptops are on sale, while 10% (.1) of the desktops are on sale. Use a tree diagram to determine the percentage of the computers in the store that are on sale.
Management announce an incentive pay for the top 30% producers. what is the minimum number of units that a worker should produce in order to qualify for the incentive pay?
I scheduled three calls for a particular day, and each call has a probability of 0.5 of making a sale. What are his probabilities of making (a) three sales, (b) two or more sales, (c) no sales?
A sample of 46 homes in a subdivision revealed that 20 were ranch style (as opposed to colonial, tri-level, or Cape Cod). Construct a 98 percent confidence interval for the true proportion of ranch style homes.
The mean of a normal distribution is 400 pounds. The standard deviation is 10 pounds. a) what is the area between 415 pounds and the mean of 400 pounds?
use a table of cumulative areas under the normal curve to find the z-score that corresponds to the given cumulative
what is the formula of t-quantile distribution needed to calculate an exact 90 confidence interval for the
question a corporation owns several companies. the strategic planner for the corporation believes dollars spent on
What is the population of interest? Find the gas prices of regular, unleaded gasoline at 45 gas stations in the Milwaukee area. You can do this using the suggested websites below or you can drive around and record prices. Note that these websites..
The following sample data were obtained from three populations where the variances were not equal, and you wish to compare the populations.
based on the cell phone usage data what is the most economical individual plan?69.99 unlimited monthly1.99day
Assume you randomly sample one mouse from the colony. The probability his age will be between 55 and 70 days is?
In his report to the mall management, can he say that shoplifting is twice as likely to be the cause of the loss as compared with either employee theft or poor inventory control and that employee theft and poor inventory control are equally likely..
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