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Hamburger Joe's sells the best burgers in town. The variable unit cost for making one burger is $.97. The fixed cost of making burgers for 12 months will be a total of: $140,000. Remember, fixed costs cover things like your rent, your phone bill, and insurance coverage - these items tend not to vary in amount per month over the term of one year.
If you charge $1.99 for your burger, how many burgers will you have to sell before you make back your total cost?
How many degrees of freedom should the researcher use in her t-test critical value assuming that the variances are equal?
What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call?
The alternative hypothesis is true. In this case the consumer advocacy group will have, A consumer advocacy group doubts this claim and tests the hypotheses
You're the production manager for operation that produces circuit boards. Each board is tested at the end of manufacturing process. Rejected boards are discarded and have no future value.
The heights in centimeters of 5 students are: 165, 175, 176, 159, 170. The sample median and sample mean are respectively:
Use the Empirical Rule to estimate the proportion of costs within two standard deviations of the mean. What are these limits?
Create a 95% confidence interval for true mean.
Two letters are chosen at random without replacement from word statistical. Determine the probability that both letters are s?
Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 200 antennas, find the probability that:
To find out the test statistics utilizing chi square method. A professional bowler has been having trouble 'hitting the pocket' in order to get strikes.
Assume that in a hypothesis test with null hypothesis H 0 : μ = 14.0 at a = 0.05, that a value of 13.0 for the sample mean results in the null hypothesis not being rejected. That corresponds to a confidence interval result of:
If all samples of size 64 are drawn, mean of sample according to Central Limit Theorem is 100.
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