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Given that a population has a mean of 50 and a standard deviation of 15, what is the:
a. Mean of the sampling distribution of the mean?
b. Standard error of the mean for a sample size of 10?
c. Standard error of the mean for a sample size of 40?
You are one space short of winning a child's board game and must roll a 1 dice to claim victory. You want to know how many rolls it might take. Describe how you would simulate rolling the dice until you get 1.
Suppose the weights of full boxes of a certain kind of cereal are normally distributed with a population standard deviation of 0.29 ounces.
Construct a 90% confidence interval for the true mean weight. What sample size would be necessary to estimate the true weight with an error of plus or minus .03 grams with a 90% confidence?
Create a 98 percent confidence interval for the population mean.
the amount of distilled water dispensed by a certain machine is normally distributed with mean value 64oz and standard
A firm plans to hire 100 employees during the year. It expects that 25 of these employees will obtain graduate degrees within the next 5 years of being hired. In addition, 35 employees will leave the firm within 5 years.
question a furniture store expects to sell 640 sofas at a steady rate next year. the manager of the store plans to
Give critical test statistic and compute sample test statistic. Test null hypothesis at alpha level .01.
Quaker Oats is contemplating changing the shape of its box from the quaint cylinder presently in use. Different random samples were selected from five stores of similar size in the same region
Researchers routinely choose an -level of 0.05 for testing their hypotheses. What are some experiments for which you might want a lower -level (e.g. 0.01)?
You and your friends have decided to go to The Kentucky Derby. There are 12 horses in the race. How many ways can the horses come in first, second, or third?
Suppose you were a manager of a business. You can only pick on method to solve the LP problems, which method would you choose and Why?
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